llvmpipe: Axe texture sampling code inherited from softpipe.

Was used only as a reference, since texture sampling is now code generated.
Already axed in the lp-binning branch too.

This fixes the llvmpipe build after recent sampling changes.

src/gallium/drivers/llvmpipe/Makefile

@@ -50,7 +50,6 @@ C_SOURCES = \
 	lp_state_vs.c \
 	lp_surface.c \
 	lp_tex_cache.c \
-	lp_tex_sample_c.c \
 	lp_tex_sample_llvm.c \
 	lp_texture.c \
 	lp_tile_cache.c \

src/gallium/drivers/llvmpipe/SConscript

@@ -66,7 +66,6 @@ llvmpipe = env.ConvenienceLibrary(
 		'lp_state_vs.c',
 		'lp_surface.c',
 		'lp_tex_cache.c',
-		'lp_tex_sample_c.c',
 		'lp_tex_sample_llvm.c',
 		'lp_texture.c',
 		'lp_tile_cache.c',

src/gallium/drivers/llvmpipe/lp_state_fs.c

@@ -550,13 +550,8 @@ generate_fragment(struct llvmpipe_context *lp,
                             a0_ptr, dadx_ptr, dady_ptr,
                             x0, y0, 2, 0);
 
-#if 0
-   /* C texture sampling */
-   sampler = lp_c_sampler_soa_create(context_ptr);
-#else
    /* code generated texture sampling */
    sampler = lp_llvm_sampler_soa_create(key->sampler, context_ptr);
-#endif
 
    for(i = 0; i < num_fs; ++i) {
       LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);

src/gallium/drivers/llvmpipe/lp_tex_sample.h

@@ -78,16 +78,6 @@ lp_get_samples(struct tgsi_sampler *tgsi_sampler,
                float rgba[NUM_CHANNELS][QUAD_SIZE]);
 
 
-/**
- * Texture sampling code generator that just calls lp_get_samples C function
- * for the actual sampling computation.
- *
- * @param context_ptr LLVM value with the pointer to the struct lp_jit_context.
- */
-struct lp_build_sampler_soa *
-lp_c_sampler_soa_create(LLVMValueRef context_ptr);
-
-
 /**
  * Pure-LLVM texture sampling code generator.
  *