Update to current gtest/gmock.

testing/gmock/include/gmock/internal/gmock-port.h

Index: testing/gmock/include/gmock/internal/gmock-port.h
diff --git a/testing/gmock/include/gmock/internal/gmock-port.h b/testing/gmock/include/gmock/internal/gmock-port.h
index 27b67a5c50c657cc4ec54985cbafb6298250eac3..30115f237b5bc2dd34d4ada7e4356389d885c6b4 100644
--- a/testing/gmock/include/gmock/internal/gmock-port.h
+++ b/testing/gmock/include/gmock/internal/gmock-port.h
@@ -52,26 +52,8 @@
 
 #if GTEST_OS_LINUX
 
-// On some platforms, <regex.h> needs someone to define size_t, and
-// won't compile otherwise.  We can #include it here as we already
-// included <stdlib.h>, which is guaranteed to define size_t through
-// <stddef.h>.
-#include <regex.h>  // NOLINT
-
-// Defines this iff Google Mock uses the enhanced POSIX regular
-// expression syntax.  This is public as it affects how a user uses
-// regular expression matchers.
-#define GMOCK_USES_POSIX_RE 1
-
 #endif  // GTEST_OS_LINUX
 
-#if defined(GMOCK_USES_PCRE) || defined(GMOCK_USES_POSIX_RE)
-// Defines this iff regular expression matchers are supported.  This
-// is public as it tells a user whether he can use regular expression
-// matchers.
-#define GMOCK_HAS_REGEX 1
-#endif  // defined(GMOCK_USES_PCRE) || defined(GMOCK_USES_POSIX_RE)
-
 namespace testing {
 namespace internal {