Remove all ZIP64LIMIT hack

In the old days, we hacked values of ZIP64LIMIT to get around size
limitations of non-zip64 supported zip files. Now that we switched to
python3 + zip64, there's no point in keeping those hacks.

Test: th
Bug: 255683436
Change-Id: I913db33dad5503736c68a7a1f1321aa952019f60
diff --git a/tools/releasetools/check_ota_package_signature.py b/tools/releasetools/check_ota_package_signature.py
index b395c19..97957be 100755
--- a/tools/releasetools/check_ota_package_signature.py
+++ b/tools/releasetools/check_ota_package_signature.py
@@ -142,7 +142,7 @@
   """Verifies the payload and metadata signatures in an A/B OTA payload."""
   package_zip = zipfile.ZipFile(package, 'r', allowZip64=True)
   if 'payload.bin' not in package_zip.namelist():
-    common.ZipClose(package_zip)
+    package_zip.close()
     return
 
   print('Verifying A/B OTA payload signatures...')
@@ -160,7 +160,7 @@
          '--in_file=' + payload_file,
          '--public_key=' + pubkey]
   common.RunAndCheckOutput(cmd)
-  common.ZipClose(package_zip)
+  package_zip.close()
 
   # Verified successfully upon reaching here.
   print('\nPayload signatures VERIFIED\n\n')