win: /PROFILE works fine with clang.

build/config/win/BUILD.gn

Index: build/config/win/BUILD.gn
diff --git a/build/config/win/BUILD.gn b/build/config/win/BUILD.gn
index 215631366dac71b884c0583a7e93c18b53ac5772..69867ecea3d0c95922cc314e53b3f4419b043978 100644
--- a/build/config/win/BUILD.gn
+++ b/build/config/win/BUILD.gn
@@ -86,13 +86,13 @@ config("compiler") {
   # information is used by the Syzygy optimization tool when decomposing the
   # release image. It is enabled for syzyasan builds and opportunistically for
   # other builds where it is not prohibited (not supported when incrementally
-  # linking, using /debug:fastlink, or building with clang).
+  # linking, or using /debug:fastlink).
   if (is_syzyasan) {
     assert(!is_win_fastlink)
     ldflags = [ "/PROFILE" ]
   } else {
     if (!is_debug && !is_component_build) {
-      if (is_win_fastlink || is_clang) {
+      if (is_win_fastlink) {
         # /PROFILE implies the following linker flags. Therefore if we are
         # skipping /PROFILE because it is incompatible with /DEBUG:FASTLINK
         # we should explicitly add these flags in order to avoid unintended