Revert "Prepare 4.5.0-RC"
Revert "Prepare 4.5.0-RC"

This reverts commit e407488911c634e1bad59fb497ef3b84e721a7b1.

fcrepo4/fcrepo-module-auth-webac,fcrepo4-labs/fcrepo-module-auth-webac,peichman-umd/fcrepo-module-auth-webac