Revert "DB-1933 fix remove coprocessor does not update coprocessor list"

This reverts commit 22c342d2d3d51be3b56a8ef685760dde5c3cad36.
Revert "DB-2244 Two phase split policy with condition"

This reverts commit 04948e7baab0ffbfbf970c2bf22d88db548ac237.
Revert "DB-2180 renamed main class"

This reverts commit f807a9b3daad2f0ac93144297a66acc9a7158a0a.
Revert "DB-2175 fix"

This reverts commit c94d7e69df102ac356eb42a0fb61146de0e2eaa5.
Revert "DB-2180 - new DoublePhaseRegionSplitPolicy"

This reverts commit c3e8711104c5cc016ddded0b42461395e7a2e0a2.
Revert "DB-1933 patch"

This reverts commit f9b4bda278695d8838772bed6925ac83428a5a1c.