Unified sysroot: arch-X/include directories are gone.

Bug: N/A
Test: builds
Change-Id: I98fc6a1a3c0be1c90b1deb35b54f36ab16a202ac
diff --git a/cc/config/mips64_device.go b/cc/config/mips64_device.go
index 3a49e7b..35fa551 100644
--- a/cc/config/mips64_device.go
+++ b/cc/config/mips64_device.go
@@ -108,7 +108,7 @@
 	pctx.StaticVariable("Mips64Cflags", strings.Join(mips64Cflags, " "))
 	pctx.StaticVariable("Mips64Ldflags", strings.Join(mips64Ldflags, " "))
 	pctx.StaticVariable("Mips64Cppflags", strings.Join(mips64Cppflags, " "))
-	pctx.StaticVariable("Mips64IncludeFlags", bionicHeaders("mips64", "mips"))
+	pctx.StaticVariable("Mips64IncludeFlags", bionicHeaders("mips"))
 
 	// Clang cflags
 	pctx.StaticVariable("Mips64ClangCflags", strings.Join(ClangFilterUnknownCflags(mips64ClangCflags), " "))