[Ada] Minor refactoring: remove extra parentheses

2018-07-17  Piotr Trojanek  <trojanek@adacore.com>

gcc/ada/

	* einfo.adb (Is_Wrapper_Package): Remove extra parentheses.

From-SVN: r262770

gcc/ada/ChangeLog

+2018-07-17  Piotr Trojanek  <trojanek@adacore.com>
+
+	* einfo.adb (Is_Wrapper_Package): Remove extra parentheses.
+
 2018-07-17  Ed Schonberg  <schonberg@adacore.com>
 
 	* sem_util.adb (Enclosing_Subprogram): Handle properly entries, and

gcc/ada/einfo.adb

@@ -8385,7 +8385,7 @@ package body Einfo is
 
    function Is_Wrapper_Package (Id : E) return B is
    begin
-      return (Ekind (Id) = E_Package and then Present (Related_Instance (Id)));
+      return Ekind (Id) = E_Package and then Present (Related_Instance (Id));
    end Is_Wrapper_Package;
 
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