Revert "Enable -Wfortify-source"

This reverts commit 608779b224bef6f9efafb1206a2b357951aa9d99.

Reason for revert: Droidmonitor created revert due to build breakages in b/362287839.

Change-Id: I6ff96539ae714698692794209d8e76e6062378b0
diff --git a/cc/config/global.go b/cc/config/global.go
index 707b9dc..0e8fff6 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -362,6 +362,8 @@
 		"-Wno-array-parameter",
 		"-Wno-gnu-offsetof-extensions",
 		"-Wno-pessimizing-move",
+		// TODO: Enable this warning http://b/315245071
+		"-Wno-fortify-source",
 	}
 
 	llvmNextExtraCommonGlobalCflags = []string{