Get rid of a useless if statement whose then and else blocks were identical.

llvm-svn: 32729
diff --git a/llvm/lib/Transforms/IPO/SimplifyLibCalls.cpp b/llvm/lib/Transforms/IPO/SimplifyLibCalls.cpp
index bbe020c..7cc1a5b 100644
--- a/llvm/lib/Transforms/IPO/SimplifyLibCalls.cpp
+++ b/llvm/lib/Transforms/IPO/SimplifyLibCalls.cpp
@@ -920,10 +920,7 @@
 
     // strlen("xyz") -> 3 (for example)
     const Type *Ty = SLC.getTargetData()->getIntPtrType();
-    if (Ty->isSigned())
-      ci->replaceAllUsesWith(ConstantInt::get(Ty, len));
-    else
-      ci->replaceAllUsesWith(ConstantInt::get(Ty, len));
+    ci->replaceAllUsesWith(ConstantInt::get(Ty, len));
      
     ci->eraseFromParent();
     return true;