remove a dead APInt ctor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54869 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp
index 0ee3d54..a6b7ed3 100644
--- a/lib/Support/APFloat.cpp
+++ b/lib/Support/APFloat.cpp
@@ -24,6 +24,7 @@
 
 /* Assumed in hexadecimal significand parsing, and conversion to
    hexadecimal strings.  */
+#define COMPILE_TIME_ASSERT(cond) extern int CTAssert[(cond) ? 1 : -1]
 COMPILE_TIME_ASSERT(integerPartWidth % 4 == 0);
 
 namespace llvm {