[firebase-release] Removed change log and reset repo after 14.25.0 release

Author: google-oss-bot

CHANGELOG.md

@@ -1,6 +0,0 @@
-- Added Node 24 support.
-- Updated superstatic to v10.
-- Fixed a crash during parallel deployments when buildConfig is empty (#9455)
-- [Added] support for new google-genai plugin during `init genkit` (#8957)
-- Updated to v2.17.1 of the Data Connect emulator, which fixes an admin SDK bug for operation without argument #9449 (#9454).
-- Fixed "Precondition failed" error when updating GCFv2 functions in a FAILED state without code changes.