remove if-block that has no effect

If the outer if-block is entered, 'aIsCollection' is
returned, no matter whether the inner if-block
is entered or not.

Change-Id: Ief33e6fe6e29d1dfe287095424dac92e7f7d06b0
Reviewed-on: https://gerrit.libreoffice.org/13512Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>

idl/source/objects/types.cxx

@@ -92,15 +92,8 @@ bool SvMetaAttribute::GetAutomation() const
 
 bool SvMetaAttribute::GetIsCollection() const
 {
-    bool bRet;
     if( aIsCollection.IsSet() || !GetRef() )
     {
-        if ( aIsCollection.IsSet() )
-        {
-            bRet = aIsCollection;
-            return bRet;
-        }
-
         return aIsCollection;
     }