[NTOS:CC]
- Remove "VACB chain" optimization for CcCopyRead that was never applied anyway since MAX_RW_LENGTH == VACB_MAPPING_GRANULARITY, so a single read could never exceed one VACB
- Consolidate CcCopyRead, CcCopyWrite and the cached case of CcZeroData into a common worker function
CORE-8410

git-svn-id: svn://svn.reactos.org/reactos/trunk/reactos@63903 97493ccd-5924-5043-b1f5-66cb403b36ce
[NPFS]: The third argument of ObLogSecurityDescriptor is an integer, not a boolean.

git-svn-id: svn://svn.reactos.org/reactos/trunk/reactos@63904 97493ccd-5924-5043-b1f5-66cb403b36ce