Remove some filesystem APIs and tests under !GTEST_HAS_FILE_SYSTEM

PiperOrigin-RevId: 509537606
Change-Id: I68f7054e34b1fe76c1fd85099fffa4ee3c2b00c0

googletest/test/gtest_dirs_test.cc

@@ -7,6 +7,8 @@
 #include "gtest/gtest.h"
 #include "gtest/internal/gtest-port.h"
 
+#if GTEST_HAS_FILE_SYSTEM
+
 namespace {
 
 class SetEnv {
@@ -94,4 +96,6 @@ TEST(SrcDirTest, NotInEnvironment) {
   EXPECT_NE(testing::SrcDir(), "");
 }
 
+#endif  // GTEST_HAS_FILE_SYSTEM
+
 }  // namespace