Revert "make msLayerNextShape calculate shape bounds (#4391)"

This reverts commit f3554df.

maplayer.c

@@ -148,9 +148,8 @@ int msLayerWhichShapes(layerObj *layer, rectObj rect, int isQuery)
 */
 int msLayerNextShape(layerObj *layer, shapeObj *shape)
 {
-  int rv;
   if ( ! layer->vtable) {
-    rv =  msInitializeVirtualTable(layer);
+    int rv =  msInitializeVirtualTable(layer);
     if (rv != MS_SUCCESS)
       return rv;
   }
@@ -162,9 +161,7 @@ int msLayerNextShape(layerObj *layer, shapeObj *shape)
   /* tagged on to the main attributes with the naming scheme [join name].[item name]. */
   /* We need to leverage the iteminfo (I think) at this point */
 
-  rv = layer->vtable->LayerNextShape(layer, shape);
-  msComputeBounds(shape);
-  return rv;
+  return layer->vtable->LayerNextShape(layer, shape);
 }
 
 /*
@@ -188,9 +185,8 @@ int msLayerNextShape(layerObj *layer, shapeObj *shape)
 */
 int msLayerGetShape(layerObj *layer, shapeObj *shape, resultObj *record)
 {
-  int rv;
   if( ! layer->vtable) {
-    rv =  msInitializeVirtualTable(layer);
+    int rv =  msInitializeVirtualTable(layer);
     if(rv != MS_SUCCESS)
       return rv;
   }
@@ -200,9 +196,7 @@ int msLayerGetShape(layerObj *layer, shapeObj *shape, resultObj *record)
   ** tagged on to the main attributes with the naming scheme [join name].[item name].
   */
 
-  rv = layer->vtable->LayerGetShape(layer, shape, record);
-  msComputeBounds(shape);
-  return rv;
+  return layer->vtable->LayerGetShape(layer, shape, record);
 }
 
 /*

mappostgis.c

@@ -2198,6 +2198,8 @@ int msPostGISReadShape(layerObj *layer, shapeObj *shape)
     }
 
     shape->numvalues = layer->numitems;
+
+    msComputeBounds(shape);
   }
 
   if( layer->debug > 2 ) {

mapuvraster.c

@@ -535,6 +535,7 @@ int msUVRASTERLayerGetShape(layerObj *layer, shapeObj *shape, resultObj *record)
   line.numpoints = 1;
   line.point = &point;
   msAddLine( shape, &line );
+  msComputeBounds( shape );
 
   shape->numvalues = layer->numitems;
   shape->values = msUVRASTERGetValues(layer, &uvlinfo->u[x][y], &uvlinfo->v[x][y]);