Revert "Build system changes for CFI (Soong)"

This reverts commit d4b484b070.

Rationale: second in group of commits that left aosp_x86_64 not
building. (See https://android-build.googleplex.com/builds/
submitted/4426589/aosp_x86_64-eng/latest/logs/build_error.log)

Bug: 30227045
Test: builds
Change-Id: I38ab5284c614d6ee68e7359219bd75c7d50131be

cc/library.go

@@ -513,10 +513,6 @@ func (library *libraryDecorator) linkShared(ctx ModuleContext,
 		if versionScript.Valid() {
 			flags.LdFlags = append(flags.LdFlags, "-Wl,--version-script,"+versionScript.String())
 			linkerDeps = append(linkerDeps, versionScript.Path())
-			if library.sanitize.isSanitizerEnabled(cfi) {
-				flags.LdFlags = append(flags.LdFlags, "-Wl,--version-script,"+cfiExportsMap.String())
-				linkerDeps = append(linkerDeps, cfiExportsMap)
-			}
 		}
 		if unexportedSymbols.Valid() {
 			ctx.PropertyErrorf("unexported_symbols_list", "Only supported on Darwin")