[7.5][DOCS] Backport: Deprecate central management#14594

Merged

dedemorton merged 1 commit intoelastic:7.5from dedemorton:backport_issue#14045_7.5

Nov 19, 2019

+3-14

Commits on Nov 18, 2019

[DOCS] Deprecate central management (elastic#14104 )
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