alien.parser: method object return-type-name is redundant

basis/alien/parser/parser-tests.factor

@@ -46,6 +46,11 @@ IN: alien.parser.tests
     { "ayae" } [ parse-enum-name new-definitions get first in? ] with-parsing
 ] unit-test
 
+! return-type-name
+{ "void" } [
+    void return-type-name
+] unit-test
+
 >>
 
 TYPEDEF: char char2

basis/alien/parser/parser.factor

@@ -74,7 +74,6 @@ ERROR: *-in-c-type-name name ;
 <PRIVATE
 GENERIC: return-type-name ( type -- name )
 
-M: object return-type-name drop "void" ;
 M: word return-type-name name>> ;
 M: pointer return-type-name to>> return-type-name CHAR: * suffix ;