Remove duplicate check of LimitFloatPrecision. It was already checked earlier before IsExp10 could be set to true.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168553 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 6a1b5dd..9a6fcab 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -4184,7 +4184,7 @@
     }
   }
 
-  if (IsExp10 && LimitFloatPrecision > 0 && LimitFloatPrecision <= 18) {
+  if (IsExp10) {
     SDValue Op = getValue(I.getArgOperand(1));
 
     // Put the exponent in the right bit position for later addition to the