Remove facebook-hte-PortabilityInclude-{gtest,gmock} clang-tidy lints

Summary: Remove facebook-hte-PortabilityInclude-{gtest,gmock} clang-tidy lints because they are no longer needed now that windows UCRT declares its own posix functions.

Reviewed By: Jason-M-Fugate

Differential Revision: D67056931

fbshipit-source-id: d57afba50577191c72b0cd07dc96a538e1ecc8c1

Author: skrueger

proxygen/.clang-tidy

@@ -19,8 +19,6 @@ facebook-hte-PortabilityInclude-arpa/inet.h,
 facebook-hte-PortabilityInclude-direct.h,
 facebook-hte-PortabilityInclude-dirent.h,
 facebook-hte-PortabilityInclude-gflags/gflags.h,
-facebook-hte-PortabilityInclude-gmock/gmock.h,
-facebook-hte-PortabilityInclude-gtest/gtest.h,
 facebook-hte-PortabilityInclude-io.h,
 facebook-hte-PortabilityInclude-libgen.h,
 facebook-hte-PortabilityInclude-netdb.h,