Remove -j1 for aidl-freeze-api

Because bpmodify is safe in multi-process env.

Bug: 190577319
Bug: 229413853
Test: aidl-freeze-api
Change-Id: Ie47afc25e2259bbcbbff50f98fa9d36887558d27
diff --git a/finalize_branch_for_release.sh b/finalize_branch_for_release.sh
index 8587b3a..c942eb2 100755
--- a/finalize_branch_for_release.sh
+++ b/finalize_branch_for_release.sh
@@ -17,8 +17,7 @@
 # Update references in the codebase to new API version (TODO)
 # ...
 
-# Adding -j1 option because of file(Android.bp) race condition.
-AIDL_TRANSITIVE_FREEZE=true m aidl-freeze-api -j1
+AIDL_TRANSITIVE_FREEZE=true m aidl-freeze-api
 
 m check-vndk-list || update-vndk-list.sh # for new versions of AIDL interfaces