remove a dead function

googletest/include/gtest/internal/gtest-port.h

@@ -2019,10 +2019,6 @@ inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
 
 GTEST_DISABLE_MSC_DEPRECATED_PUSH_()
 
-inline const char* StrNCpy(char* dest, const char* src, size_t n) {
-  return strncpy(dest, src, n);
-}
-
 // ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and
 // StrError() aren't needed on Windows CE at this time and thus not
 // defined there.