AST: Remove unused ParamDecl::getParameterFlags()

Author: slavapestov

include/swift/AST/Decl.h

@@ -4729,10 +4729,6 @@ class ParamDecl : public VarDecl {
   /// was specified separately from the parameter name.
   SourceLoc getArgumentNameLoc() const { return ArgumentNameLoc; }
 
-  /// Retrieve the parameter type flags corresponding to the declaration of
-  /// this parameter's argument type.
-  ParameterTypeFlags getParameterFlags() const;
-  
   SourceLoc getSpecifierLoc() const { return SpecifierLoc; }
 
   bool isTypeLocImplicit() const { return Bits.ParamDecl.IsTypeLocImplicit; }

lib/AST/Decl.cpp

@@ -4799,11 +4799,6 @@ ParamDecl *ParamDecl::createSelf(SourceLoc loc, DeclContext *DC,
   return selfDecl;
 }
 
-ParameterTypeFlags ParamDecl::getParameterFlags() const {
-  return ParameterTypeFlags::fromParameterType(getType(), isVariadic(),
-                                               getValueOwnership());
-}
-
 /// Return the full source range of this parameter.
 SourceRange ParamDecl::getSourceRange() const {
   SourceLoc APINameLoc = getArgumentNameLoc();