Revert "perform fast key derivation on raw keys"
Revert "perform fast key derivation on raw keys"

This reverts commit 2e868032dc0acbf631bcdb36345eaf1b900d9b14.

bestofsong/sqlcipher,supriyantomaftuh/sqlcipher,pandazheng/sqlcipher,cnbin/sqlcipher,pandazheng/sqlcipher,emodeqidao/sqlcipher,luis-allan/sqlcipher,shanshan1026/sqlcipher,Mozhuowen/sqlcipher,RAN-II/sqlcipher,supriyantomaftuh/sqlcipher,luis-allan/sqlcipher,cnbin/sqlcipher,supriyantomaftuh/sqlcipher,hongbinz/sqlcipher,luis-allan/sqlcipher,hongbinz/sqlcipher,bestofsong/sqlcipher,emodeqidao/sqlcipher,ylfonline/sqlcipher,shanshan1026/sqlcipher,ylfonline/sqlcipher,ylfonline/sqlcipher,RAN-II/sqlcipher,pandazheng/sqlcipher,RAN-II/sqlcipher,bestofsong/sqlcipher,emodeqidao/sqlcipher,hongbinz/sqlcipher,Mozhuowen/sqlcipher,shanshan1026/sqlcipher,Mozhuowen/sqlcipher,cnbin/sqlcipher,shanshan1026/sqlcipher