InferAddressSpaces: Remove redundant assert

This is just asserting all the operations are handled in the
switch, which the unreachable already handles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301270 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/InferAddressSpaces.cpp

@@ -204,7 +204,6 @@ static bool isAddressExpression(const Value &V) {
 //
 // Precondition: V is an address expression.
 static SmallVector<Value *, 2> getPointerOperands(const Value &V) {
-  assert(isAddressExpression(V));
   const Operator &Op = cast<Operator>(V);
   switch (Op.getOpcode()) {
   case Instruction::PHI: {