i965: Stop lowering integer division to multiply and reciprocal.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

src/mesa/drivers/dri/i965/brw_shader.cpp

@@ -100,7 +100,6 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
       lower_instructions(shader->ir,
 			 MOD_TO_FRACT |
 			 DIV_TO_MUL_RCP |
-			 INT_DIV_TO_MUL_RCP |
 			 SUB_TO_ADD_NEG |
 			 EXP_TO_EXP2 |
 			 LOG_TO_LOG2);