Revert "C++: Factor out transparent conversions in their own predicate"

This reverts commit b185cc8.

Author: jketema

cpp/ql/lib/semmle/code/cpp/ir/implementation/raw/internal/TranslatedExpr.qll

@@ -909,17 +909,17 @@ class TranslatedTransparentUnaryOperation extends TranslatedTransparentExpr {
   }
 }
 
-private predicate isTransparentConversion(Conversion expr) {
-  expr instanceof ParenthesisExpr or
-  expr instanceof ReferenceDereferenceExpr or
-  expr instanceof ReferenceToExpr or
-  expr instanceof C11GenericExpr
-}
-
 class TranslatedTransparentConversion extends TranslatedTransparentExpr {
   override Conversion expr;
 
-  TranslatedTransparentConversion() { isTransparentConversion(expr) }
+  TranslatedTransparentConversion() {
+    (
+      expr instanceof ParenthesisExpr or
+      expr instanceof ReferenceDereferenceExpr or
+      expr instanceof ReferenceToExpr or
+      expr instanceof C11GenericExpr
+    )
+  }
 
   override TranslatedExpr getOperand() { result = getTranslatedExpr(expr.getExpr()) }
 }