Remove dead methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165902 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/Attributes.h b/include/llvm/Attributes.h
index d3d1177..a69667b 100644
--- a/include/llvm/Attributes.h
+++ b/include/llvm/Attributes.h
@@ -224,9 +224,6 @@
       hasAttribute(Attributes::AddressSafety);
   }
 
-  bool isEmptyOrSingleton() const;
-
-  // This is a "safe bool() operator".
   bool operator == (const Attributes &A) const {
     return Attrs.Bits == A.Attrs.Bits;
   }
diff --git a/include/llvm/AttributesImpl.h b/include/llvm/AttributesImpl.h
index eea11a7..93001e2 100644
--- a/include/llvm/AttributesImpl.h
+++ b/include/llvm/AttributesImpl.h
@@ -36,8 +36,6 @@
   uint64_t getAlignment() const;
   uint64_t getStackAlignment() const;
 
-  bool isEmptyOrSingleton() const;
-
   static uint64_t getAttrMask(uint64_t Val);
 
   void Profile(FoldingSetNodeID &ID) const {
diff --git a/lib/VMCore/Attributes.cpp b/lib/VMCore/Attributes.cpp
index f9957d6..15890f9 100644
--- a/lib/VMCore/Attributes.cpp
+++ b/lib/VMCore/Attributes.cpp
@@ -89,10 +89,6 @@
   return 1U << ((Attrs.getStackAlignment() >> 26) - 1);
 }
 
-bool Attributes::isEmptyOrSingleton() const {
-  return Attrs.isEmptyOrSingleton();
-}
-
 uint64_t Attributes::Raw() const {
   return Attrs.Bits;
 }
@@ -317,10 +313,6 @@
   return Bits & getAttrMask(Attributes::StackAlignment);
 }
 
-bool AttributesImpl::isEmptyOrSingleton() const {
-  return (Bits & (Bits - 1)) == 0;
-}
-
 //===----------------------------------------------------------------------===//
 // AttributeListImpl Definition
 //===----------------------------------------------------------------------===//