[gn build] Port 1072b94

Author: llvmgnsyncbot

llvm/utils/gn/secondary/clang/unittests/Driver/BUILD.gn

@@ -14,7 +14,6 @@ unittest("ClangDriverTests") {
   sources = [
     "DXCModeTest.cpp",
     "DistroTest.cpp",
-    "GCCVersionTest.cpp",
     "ModuleCacheTest.cpp",
     "MultilibBuilderTest.cpp",
     "MultilibTest.cpp",