Since we're only using it on Linux now, just require poppler as a system dependency.

third_party/poppler/config/windows/config.h

Index: third_party/poppler/config/windows/config.h
diff --git a/third_party/poppler/config/windows/config.h b/third_party/poppler/config/windows/config.h
deleted file mode 100644
index 846f7a4bc2bf8c44066ac55da9d6190d2eb64752..0000000000000000000000000000000000000000
--- a/third_party/poppler/config/windows/config.h
+++ /dev/null
@@ -1,225 +0,0 @@
-/* config.h.  Generated from config.h.cmake by cmake.  */
-
-/* Build against libcurl. */
-/* #undef ENABLE_LIBCURL */
-
-/* Use libjpeg instead of builtin jpeg decoder. */
-/* #undef ENABLE_LIBJPEG */
-
-/* Use libopenjpeg instead of builtin jpeg2000 decoder. */
-/* #undef ENABLE_LIBOPENJPEG */
-
-/* Build against libtiff. */
-/* #undef ENABLE_LIBTIFF */
-
-/* Build against libpng. */
-/* #undef ENABLE_LIBPNG */
-
-/* Do not hardcode the library location */
-#define ENABLE_RELOCATABLE 1
-
-/* Use zlib instead of builtin zlib decoder. */
-/* #undef ENABLE_ZLIB */
-
-/* Use cairo for rendering. */
-/* #undef HAVE_CAIRO */
-
-/* Define to 1 if you have the <dirent.h> header file, and it defines `DIR'.
-   */
-/* #undef HAVE_DIRENT_H */
-
-/* Define to 1 if you have the <dlfcn.h> header file. */
-/* #undef HAVE_DLFCN_H */
-
-/* Define to 1 if you have the <fcntl.h> header file. */
-#define HAVE_FCNTL_H 1
-
-/* Have FreeType2 include files */
-#define HAVE_FREETYPE_H 1
-
-/* Define to 1 if you have the `fseek64' function. */
-/* #undef HAVE_FSEEK64 */
-
-/* Define to 1 if fseeko (and presumably ftello) exists and is declared. */
-/* #undef HAVE_FSEEKO */
-
-/* Define to 1 if you have the `ftell64' function. */
-/* #undef HAVE_FTELL64 */
-
-/* Defines if gettimeofday is available on your system */
-/* #undef HAVE_GETTIMEOFDAY */
-
-/* Defines if gmtime_r is available on your system */
-/* #undef HAVE_GMTIME_R */
-
-/* Define if you have the iconv() function and it works. */
-/* #undef HAVE_ICONV */
-
-/* Define to 1 if you have the <inttypes.h> header file. */
-/* #undef HAVE_INTTYPES_H */
-
-/* Define to 1 if you have the `openjpeg' library (-lopenjpeg). */
-/* #undef HAVE_LIBOPENJPEG */
-
-/* Define to 1 if you have the `z' library (-lz). */
-/* #undef HAVE_LIBZ */
-
-/* Defines if localtime_r is available on your system */
-/* #undef HAVE_LOCALTIME_R */
-
-/* Define to 1 if you have the <memory.h> header file. */
-#define HAVE_MEMORY_H 1
-
-/* Define to 1 if you have the `mkstemp' function. */
-/* #undef HAVE_MKSTEMP */
-
-/* Define to 1 if you have the `mkstemps' function. */
-/* #undef HAVE_MKSTEMPS */
-
-/* Define to 1 if you have the `rand_r' function. */
-/* #undef HAVE_RAND_R */
-
-/* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
-/* #undef HAVE_NDIR_H */
-
-/* Define to 1 if you have the <openjpeg.h> header file. */
-/* #undef HAVE_OPENJPEG_H */
-
-/* Define to 1 if you have the `popen' function. */
-/* #undef HAVE_POPEN */
-
-/* Define if you have POSIX threads libraries and header files. */
-/* #undef HAVE_PTHREAD */
-
-/* Use splash for rendering. */
-#define HAVE_SPLASH 1
-
-/* Define to 1 if you have the <stdint.h> header file. */
-#define HAVE_STDINT_H 1
-
-/* Define to 1 if you have the <stdlib.h> header file. */
-#define HAVE_STDLIB_H 1
-
-/* Define to 1 if you have the <strings.h> header file. */
-/* #undef HAVE_STRINGS_H */
-
-/* Define to 1 if you have the <string.h> header file. */
-#define HAVE_STRING_H 1
-
-/* Define to 1 if you have the <sys/dir.h> header file, and it defines `DIR'.
-   */
-/* #undef HAVE_SYS_DIR_H */
-
-/* Define to 1 if you have the <sys/mman.h> header file. */
-/* #undef HAVE_SYS_MMAN_H */
-
-/* Define to 1 if you have the <sys/ndir.h> header file, and it defines `DIR'.
-   */
-/* #undef HAVE_SYS_NDIR_H */
-
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#define HAVE_SYS_STAT_H 1
-
-/* Define to 1 if you have the <sys/types.h> header file. */
-#define HAVE_SYS_TYPES_H 1
-
-/* Define to 1 if you have the <unistd.h> header file. */
-/* #undef HAVE_UNISTD_H */
-
-/* Define to 1 if you have the <zlib.h> header file. */
-/* #undef HAVE_ZLIB_H */
-
-/* Define to 1 if you have a big endian machine */
-/* #undef WORDS_BIGENDIAN */
-
-/* Define as const if the declaration of iconv() needs const. */
-#define ICONV_CONST const
-
-/* Enable multithreading support. */
-#define MULTITHREADED 1
-
-/* Generate OPI comments in PS output. */
-#define OPI_SUPPORT 1
-
-/* Name of package */
-#define PACKAGE "poppler"
-
-/* Define to the address where bug reports for this package should be sent. */
-#define PACKAGE_BUGREPORT "https://bugs.freedesktop.org/enter_bug.cgi?product=poppler"
-
-/* Define to the full name of this package. */
-#define PACKAGE_NAME "poppler"
-
-/* Define to the full name and version of this package. */
-#define PACKAGE_STRING "poppler 0.22.5"
-
-/* Define to the one symbol short name of this package. */
-#define PACKAGE_TARNAME "poppler"
-
-/* Define to the home page for this package. */
-#define PACKAGE_URL ""
-
-/* Define to the version of this package. */
-#define PACKAGE_VERSION "0.22.5"
-
-/* Poppler data dir */
-#define POPPLER_DATADIR "C:/Program Files (x86)/poppler/share/poppler"
-
-/* Support for curl based doc builder is compiled in. */
-/* #undef POPPLER_HAS_CURL_SUPPORT */
-
-/* Define to 1 if you have the ANSI C header files. */
-#define STDC_HEADERS 1
-
-/* Enable word list support. */
-#define TEXTOUT_WORD_LIST 1
-
-/* Defines if use cms */
-/* #undef USE_CMS */
-
-/* Use fixed point arithmetic in the Splash backend */
-/* #undef USE_FIXEDPOINT */
-
-/* Use single precision arithmetic in the Splash backend */
-/* #undef USE_FLOAT */
-
-/* Defines if use lcms1 */
-/* #undef USE_LCMS1 */
-
-/* Version number of package */
-#define VERSION "0.22.5"
-
-/* Use fontconfig font configuration backend */
-/* #undef WITH_FONTCONFIGURATION_FONTCONFIG */
-
-/* Use win32 font configuration backend */
-#define WITH_FONTCONFIGURATION_WIN32 1
-
-/* OpenJPEG with the OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG flag */
-/* #undef WITH_OPENJPEG_IGNORE_PCLR_CMAP_CDEF_FLAG */
-
-/* Define to 1 if the X Window System is missing or not being used. */
-/* #undef X_DISPLAY_MISSING */
-
-/*
- * jpeg.h needs HAVE_BOOLEAN, when the system uses boolean in system
- * headers and I'm too lazy to write a configure test as long as only
- * unixware is related
- */
-#ifdef _UNIXWARE
-#define HAVE_BOOLEAN
-#endif
-
-/* MS has defined snprintf as deprecated */
-#ifdef _MSC_VER
-#define snprintf _snprintf
-#endif
-
-/* Number of bits in a file offset, on hosts where this is settable. */
-/* #undef _FILE_OFFSET_BITS */
-
-/* Define to 1 to make fseeko visible on some hosts (e.g. glibc 2.2). */
-/* #undef _LARGEFILE_SOURCE */
-
-/* Define for large files, on AIX-style hosts. */
-/* #undef _LARGE_FILES */