[TableGen] CodeGenDAGPatterns - (style) remove if-else chain when if block always returns. NFCI.

GitOrigin-RevId: 82240e07ebdc4c0f492e31a1e93d228d06120f8e
diff --git a/utils/TableGen/CodeGenDAGPatterns.cpp b/utils/TableGen/CodeGenDAGPatterns.cpp
index ce6e090..ef130b4 100644
--- a/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -1252,7 +1252,7 @@
 StringRef TreePredicateFn::getImmTypeIdentifier() const {
   if (immCodeUsesAPInt())
     return "APInt";
-  else if (immCodeUsesAPFloat())
+  if (immCodeUsesAPFloat())
     return "APFloat";
   return "I64";
 }