Revert of Use /LTCG:Incremental to speed up the non-clobber official builds. (patchset #2 id:20001 …

build/config/compiler/BUILD.gn

Index: build/config/compiler/BUILD.gn
diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
index dd135c846ef22c93241c6c7898a1ab2749775856..785cdf3f5bc179e8d83b726d10f82074708f9d7f 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -1200,12 +1200,7 @@ if (is_win) {
   if (is_official_build) {
     common_optimize_on_ldflags += [
       "/OPT:REF",  # Remove unreferenced data.
-
-      # Enable /LTCG for the official builds. Use the incremental mode to
-      # speed-up the non-clobber builds. This is not the same as incremental
-      # linking (/INCREMENTAL) and doesn't have any impact on code size or on
-      # performance.
-      "/LTCG:INCREMENTAL",
+      "/LTCG",  # Link-time code generation.
 
       # Set the number of LTCG code-gen threads to eight. The default is four.
       # This gives a 5-10% link speedup.