[cc_fuzz] Revert 'disable LTO' patches.

The toolchain no longer has a problem with sancov + LTO.

Bug: 131771163
Test: make haiku
Change-Id: If85931f092c41336a8a5e0e7999ad39dd8ec3daf

cc/lto.go

@@ -82,12 +82,6 @@ func (lto *lto) useClangLld(ctx BaseModuleContext) bool {
 }
 
 func (lto *lto) flags(ctx BaseModuleContext, flags Flags) Flags {
-	// TODO(b/131771163): Disable LTO when using explicit fuzzing configurations.
-	// LTO breaks fuzzer builds.
-	if inList("-fsanitize=fuzzer-no-link", flags.Local.CFlags) {
-		return flags
-	}
-
 	if lto.LTO(ctx) {
 		var ltoCFlag string
 		var ltoLdFlag string