Remove redundant check.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150855 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.cpp b/lib/CodeGen/CodeGenFunction.cpp
index 28c5935..47176bd 100644
--- a/lib/CodeGen/CodeGenFunction.cpp
+++ b/lib/CodeGen/CodeGenFunction.cpp
@@ -428,9 +428,8 @@
   if (isa<CXXMethodDecl>(FD) && cast<CXXMethodDecl>(FD)->isInstance())
     CGM.getCXXABI().BuildInstanceFunctionParams(*this, ResTy, Args);
 
-  if (FD->getNumParams())
-    for (unsigned i = 0, e = FD->getNumParams(); i != e; ++i)
-      Args.push_back(FD->getParamDecl(i));
+  for (unsigned i = 0, e = FD->getNumParams(); i != e; ++i)
+    Args.push_back(FD->getParamDecl(i));
 
   SourceRange BodyRange;
   if (Stmt *Body = FD->getBody()) BodyRange = Body->getSourceRange();