Revert "soong: upgrade Android platform to clang-r370808"

This reverts commit 4f49e35902.

Causes test failures in ndk_translate.
Bug: 145807809
Bug: 145827049
Test: N/A
Change-Id: I8f42a15fec44475b74b1926c70bc98e03fe66f52
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

cc/config/clang.go

@@ -132,10 +132,6 @@ func init() {
 		// Disable -Winconsistent-missing-override until we can clean up the existing
 		// codebase for it.
 		"-Wno-inconsistent-missing-override",
-
-		// Warnings from clang-10
-		// Nested and array designated initialization is nice to have.
-		"-Wno-c99-designator",
 	}, " "))
 
 	pctx.StaticVariable("ClangExtraCppflags", strings.Join([]string{
@@ -165,10 +161,6 @@ func init() {
 		// new warnings are fixed.
 		"-Wno-tautological-constant-compare",
 		"-Wno-tautological-type-limit-compare",
-		// http://b/145210666
-		"-Wno-reorder-init-list",
-		// http://b/145211066
-		"-Wno-implicit-int-float-conversion",
 	}, " "))
 
 	// Extra cflags for external third-party projects to disable warnings that
@@ -184,13 +176,6 @@ func init() {
 		// Bug: http://b/29823425 Disable -Wnull-dereference until the
 		// new instances detected by this warning are fixed.
 		"-Wno-null-dereference",
-
-		// http://b/145211477
-		"-Wno-pointer-compare",
-		// http://b/145211022
-		"-Wno-xor-used-as-pow",
-		// http://b/145211022
-		"-Wno-final-dtor-non-final-class",
 	}, " "))
 }