r300g: Remove unnecessary headers.

src/gallium/drivers/r300/r300_query.c

@@ -25,10 +25,8 @@
 
 #include "r300_context.h"
 #include "r300_screen.h"
-#include "r300_cs.h"
 #include "r300_emit.h"
 #include "r300_query.h"
-#include "r300_reg.h"
 
 #include <stdio.h>
 

src/gallium/drivers/r300/r300_screen_buffer.c

@@ -26,7 +26,6 @@
 #include <stdio.h>
 
 #include "util/u_inlines.h"
-#include "util/u_format.h"
 #include "util/u_memory.h"
 #include "util/u_upload_mgr.h"
 #include "util/u_math.h"