CID-1240106 Remove unused variable
CID-1240107 Remove unused variable
Fix for CID-1232333, CID-1232334, CID-1232335, CID-1232336 and
CID-1232337
Revert "removed unused class"

This reverts commit 093fa6f0a53bd031a09e4042c3aa25860bc947e5.
Merge branch 'bugfix/CID-1232333'
Merge branch 'bugfix/CID-1240106'
CLOUDSTACK-7534: ResetVM for VM with attached datadisk fails when enable.ha.storage.migration is false

Separate global config to enable/disable Storage Migration during normal deployment
Introduced a configuration parameter named enable.storage.migration
CLOUDSTACK-7571 changing value of cpu/mem.overprovisioning.factor for xen cluster is not affecting total memory at zone level