Fix some of the things clang --analyze flagged

code/renderergl2/tr_bsp.c

@@ -2123,8 +2123,6 @@ static void R_CreateWorldVBO(void)
 	}
 
 
-	startTime = ri.Milliseconds();
-
 	ri.Free(surfacesSorted);
 
 	ri.Hunk_FreeTempMemory(triangles);
@@ -2151,7 +2149,6 @@ static	void R_LoadSurfaces( lump_t *surfs, lump_t *verts, lump_t *indexLump ) {
 	numTriSurfs = 0;
 	numFlares = 0;
 
-	in = (void *)(fileBase + surfs->fileofs);
 	if (surfs->filelen % sizeof(*in))
 		ri.Error (ERR_DROP, "LoadMap: funny lump size in %s",s_worldData.name);
 	count = surfs->filelen / sizeof(*in);