Revert "AS7-6639 Add synchronization to workaround ISPN-2866"

This reverts commit 686cacaf15e717760259f15f6f7fe11d8fa0e049.
AS7-6639 synchronize getCache() calls to workaround ISPN-2796
fix getCache(String, boolean) parameter name
AS7-6677 Cannot deploy application using datasource with empty password value
[AS7-6678] print help usage when determining the host environment fails
[AS7-6010] also remove deployment content on the slave