UI: Update tooltip of Vertex Selection masking

Since it is now possible to use it in Vertex Paint, not just Weight Paint.

source/blender/makesrna/intern/rna_mesh.c

@@ -3096,7 +3096,7 @@ static void rna_def_mesh(BlenderRNA *brna)
   prop = RNA_def_property(srna, "use_paint_mask_vertex", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_sdna(prop, NULL, "editflag", ME_EDIT_PAINT_VERT_SEL);
   RNA_def_property_ui_text(
-      prop, "Vertex Selection", "Vertex selection masking for painting (weight paint only)");
+      prop, "Vertex Selection", "Vertex selection masking for painting");
   RNA_def_property_ui_icon(prop, ICON_VERTEXSEL, 0);
   RNA_def_property_update(prop, NC_SPACE | ND_SPACE_VIEW3D, "rna_Mesh_update_vertmask");