remove unnessary semicolon

include/mapnik/agg_renderer.hpp

@@ -116,7 +116,7 @@ public:
     {
         // agg renderer doesn't support processing of multiple symbolizers.
         return false;
-    };
+    }
 
     void painted(bool painted);
     inline eAttributeCollectionPolicy attribute_collection_policy() const

include/mapnik/cairo_renderer.hpp

@@ -117,7 +117,7 @@ public:
     {
         // cairo renderer doesn't support processing of multiple symbolizers.
         return false;
-    };
+    }
     void painted(bool /*painted*/)
     {
         // nothing to do

include/mapnik/grid/grid_renderer.hpp

@@ -104,7 +104,7 @@ public:
     {
         // grid renderer doesn't support processing of multiple symbolizers.
         return false;
-    };
+    }
     void painted(bool painted)
     {
         pixmap_.painted(painted);