Lose HAVE_ANDROID_OS from frameworks/native.

Change-Id: I8e6af2a46a9d875192fc7957ada9b5f66d84bad6
diff --git a/opengl/libagl/context.h b/opengl/libagl/context.h
index c599a55..d23f435 100644
--- a/opengl/libagl/context.h
+++ b/opengl/libagl/context.h
@@ -21,7 +21,7 @@
 #include <stddef.h>
 #include <sys/types.h>
 #include <pthread.h>
-#ifdef HAVE_ANDROID_OS
+#ifdef __ANDROID__
 #include <bionic_tls.h>
 #endif
 
@@ -579,7 +579,7 @@
 // state
 // ----------------------------------------------------------------------------
 
-#ifdef HAVE_ANDROID_OS
+#ifdef __ANDROID__
     // We have a dedicated TLS slot in bionic
     inline void setGlThreadSpecific(ogles_context_t *value) {
         __get_tls()[TLS_SLOT_OPENGL] = value;