Remove unnecessary call to truncate() am: 8436f18976

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2320955

Change-Id: I8949b0c450231a517c2ff862a8b5bbb6822f9a4a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/payload_generator/payload_signer.cc b/payload_generator/payload_signer.cc
index 33b8033..11e136f 100644
--- a/payload_generator/payload_signer.cc
+++ b/payload_generator/payload_signer.cc
@@ -458,13 +458,6 @@
                                                   &signatures_offset));
 
   LOG(INFO) << "Signed payload size: " << payload.size();
-  const auto ret =
-      HANDLE_EINTR(truncate(signed_payload_path.c_str(), payload.size()));
-  if (ret < 0) {
-    PLOG(ERROR) << "Failed to truncate file " << signed_payload_path
-                << " to size " << payload.size();
-    return false;
-  }
   TEST_AND_RETURN_FALSE(utils::WriteFile(
       signed_payload_path.c_str(), payload.data(), payload.size()));
   return true;