Remove extra braces

Co-authored-by: Joseph Huber <[email protected]>

Author: RossBrunton

offload/liboffload/include/OffloadImpl.hpp

@@ -80,10 +80,8 @@ ol_errc_t GetErrorCode(std::error_code Code) {
 } // namespace
 
 inline ol_result_t llvmErrorToOffloadError(llvm::Error &&Err) {
-  if (!Err) {
-    // No error
+  if (!Err)
     return nullptr;
-  }
 
   ol_errc_t ErrCode;
   llvm::StringRef Details;