Remove dead code. Gears runs.

src/mesa/drivers/dri/i915/i830_vtbl.c

@@ -441,7 +441,6 @@ static void i830_emit_flush( intelContextPtr intel )
 
 void i830InitVtbl( i830ContextPtr i830 )
 {
-   i830->intel.vtbl.alloc_tex_obj = i830AllocTexObj;
    i830->intel.vtbl.check_vertex_size = i830_check_vertex_size;
    i830->intel.vtbl.clear_with_tris = i830ClearWithTris;
    i830->intel.vtbl.destroy = i830_destroy_context;

src/mesa/drivers/dri/i915/i915_vtbl.c

@@ -338,7 +338,6 @@ static void i915_emit_flush( intelContextPtr intel )
 
 void i915InitVtbl( i915ContextPtr i915 )
 {
-   i915->intel.vtbl.alloc_tex_obj = i915AllocTexObj;
    i915->intel.vtbl.check_vertex_size = i915_check_vertex_size;
    i915->intel.vtbl.clear_with_tris = i915ClearWithTris;
    i915->intel.vtbl.destroy = i915_destroy_context;

src/mesa/drivers/dri/i915/intel_context.h

@@ -124,8 +124,6 @@ struct intel_context
 			       GLboolean all, 
 			       GLint cx, GLint cy, GLint cw, GLint ch);
 
-      intelTextureObjectPtr (*alloc_tex_obj)( struct gl_texture_object *tObj );
-
    } vtbl;
 
    GLint refcount;