elf_reader: drop unused zlib include

src/common/dwarf/elf_reader.cc

 // Copyright 2005 Google Inc. All Rights Reserved.
 // Author: chatham@google.com (Andrew Chatham)
 // Author: satorux@google.com (Satoru Takabayashi)
 //
 // Code for reading in ELF files.
 //
 // For information on the ELF format, see
 // http://www.x86.org/ftp/manuals/tools/elf.pdf
 //
 // I also liked:
@@ skipping 23 matching lines @@
 #include <sys/stat.h>
 #include <sys/mman.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <string.h>
 
 #include <algorithm>
 #include <map>
 #include <string>
 #include <vector>
-#include "zlib.h"
+// TODO(saugustine): Add support for compressed debug.
+// Also need to add configure tests for zlib.
+//#include "zlib.h"
 
 #include "third_party/musl/include/elf.h"
 #include "elf_reader.h"
 //#include "using_std_string.h"
 // EM_AARCH64 is not defined by elf.h of GRTE v3 on x86.
 // TODO(dougkwan): Remove this when v17 is retired.
 #if !defined(EM_AARCH64)
 #define EM_AARCH64      183             /* ARM AARCH64 */
 #endif
 
@@ skipping 1207 matching lines @@
 }
 
 bool ElfReader::IsNonStrippedELFBinary(const string &path) {
   return IsNonStrippedELFBinaryHelper(path, false);
 }
 
 bool ElfReader::IsNonDebugStrippedELFBinary(const string &path) {
   return IsNonStrippedELFBinaryHelper(path, true);
 }
 }  // namespace dwarf2reader