mesa: remove Driver.BeginVertices

Nothing overrides it.

Reviewed-by: Brian Paul <brianp@vmware.com>

src/mesa/main/dd.h

@@ -792,11 +792,6 @@ struct dd_function_table {
    /** Need to call SaveFlushVertices() upon state change? */
    GLboolean SaveNeedFlush;
 
-   /* Called prior to any of the GLvertexformat functions being
-    * called.  Paired with Driver.FlushVertices().
-    */
-   void (*BeginVertices)( struct gl_context *ctx );
-
    /**
     * If inside glBegin()/glEnd(), it should assert(0).  Otherwise, if
     * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered

src/mesa/vbo/vbo_exec.c

@@ -50,7 +50,6 @@ void vbo_exec_init( struct gl_context *ctx )
 
    ctx->Driver.NeedFlush = 0;
    ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
-   ctx->Driver.BeginVertices = vbo_exec_BeginVertices;
    ctx->Driver.FlushVertices = vbo_exec_FlushVertices;
 
    vbo_exec_invalidate_state( ctx, ~0 );

src/mesa/vbo/vbo_exec_api.c

@@ -419,7 +419,7 @@ do {									\
    struct vbo_exec_context *exec = &vbo_context(ctx)->exec;		\
    int sz = (sizeof(C) / sizeof(GLfloat));                              \
    if (unlikely(!(ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT)))	\
-      ctx->Driver.BeginVertices( ctx );					\
+      vbo_exec_BeginVertices(ctx);					\
                                                                         \
    if (unlikely(exec->vtx.active_sz[A] != N * sz) ||                    \
        unlikely(exec->vtx.attrtype[A] != T))                            \
@@ -1190,7 +1190,7 @@ void vbo_exec_FlushVertices( struct gl_context *ctx, GLuint flags )
    /* Flush (draw), and make sure VBO is left unmapped when done */
    vbo_exec_FlushVertices_internal(exec, GL_TRUE);
 
-   /* Need to do this to ensure BeginVertices gets called again:
+   /* Need to do this to ensure vbo_exec_BeginVertices gets called again:
     */
    ctx->Driver.NeedFlush &= ~(FLUSH_UPDATE_CURRENT | flags);