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

Bug: N/A
Test: builds
Change-Id: I98fc6a1a3c0be1c90b1deb35b54f36ab16a202ac
diff --git a/cc/config/x86_linux_bionic_host.go b/cc/config/x86_linux_bionic_host.go
index 093876d..277361b 100644
--- a/cc/config/x86_linux_bionic_host.go
+++ b/cc/config/x86_linux_bionic_host.go
@@ -78,7 +78,7 @@
 	pctx.StaticVariable("LinuxBionicCflags", strings.Join(linuxBionicCflags, " "))
 	pctx.StaticVariable("LinuxBionicLdflags", strings.Join(linuxBionicLdflags, " "))
 
-	pctx.StaticVariable("LinuxBionicIncludeFlags", bionicHeaders("x86_64", "x86"))
+	pctx.StaticVariable("LinuxBionicIncludeFlags", bionicHeaders("x86"))
 
 	// Use the device gcc toolchain for now
 	pctx.StaticVariable("LinuxBionicGccRoot", "${X86_64GccRoot}")