[#735 state:resolved] Removed trans_error method from MT.pm since i…

…t already inherits one from MT::ErrorHandler which does the exact same thing and hence is redundant. Also promoted its alias, `errtrans()`, MT::ErrorHandler to make it available as universally as the former.

lib/MT.pm

@@ -2272,13 +2272,6 @@ sub supported_languages {
     \%langs;
 } ## end sub supported_languages
 
-# For your convenience
-sub trans_error {
-    my $app = shift;
-    return $app->error( $app->translate(@_) );
-}
-*errtrans = \&trans_error;
-
 sub all_text_filters {
     unless (%Text_filters) {
         if ( my $filters = MT->registry('text_filters') ) {

lib/MT/ErrorHandler.pm

@@ -31,6 +31,7 @@ sub trans_error {
     return $obj->error(
            $obj->can('translate') ? $obj->translate(@_) : MT->translate(@_) );
 }
+*errtrans = \&trans_error;
 
 sub errstr { ref( $_[0] ) ? $_[0]->{_errstr} : $ERROR }