[cc] parser cleanup: remove redundant assignment

Author: jgarzik

cc/parse/parser.rs

@@ -2156,7 +2156,6 @@ impl<'a> Parser<'a> {
 
                     // Look up symbol to get type (during parsing, symbol is in scope)
                     // C99 6.4.2.2: __func__ is a predefined identifier with type const char[]
-                    let name_str = self.str(name_id);
                     let typ = if name_str == "__func__" {
                         // __func__ behaves like a string literal (const char[])
                         self.types.char_ptr_id