r300: Remove calls to rcommonEnsureCmdBufSpace.

All rendering is checked in r300PredictTryDrawPrimsSize which mamde these calls useless.

src/mesa/drivers/dri/r300/r300_draw.c

@@ -621,10 +621,6 @@ static GLboolean r300TryDrawPrims(GLcontext *ctx,
 
 	r300SwitchFallback(ctx, R300_FALLBACK_INVALID_BUFFERS, !r300ValidateBuffers(ctx));
 
-	rcommonEnsureCmdBufSpace(&r300->radeon,
-                           r300->radeon.hw.max_state_size + (60*sizeof(int)),
-                          __FUNCTION__);
-
 	r300SetVertexFormat(ctx, arrays, max_index + 1);
 
 	if (r300->fallback)

src/mesa/drivers/dri/r300/r300_render.c

@@ -341,12 +341,6 @@ void r300RunRenderPrimitive(GLcontext * ctx, int start, int end, int prim)
 	if (type < 0 || num_verts <= 0)
 		return;
 
-	/* Make space for at least 128 dwords.
-	 * This is supposed to ensure that we can get all rendering
-	 * commands into a single command buffer.
-	 */
-	rcommonEnsureCmdBufSpace(&rmesa->radeon, 128, __FUNCTION__);
-
 	if (rmesa->ind_buf.bo) {
 		GLuint first, incr, offset = 0;