remove MinCount and MaxCount contraints. It has been replaced by Count constraints.
bug #9192 [2.2][Form] remove MinCount and MaxCount constraints in ValidatorTypeGuesser (franek)

This PR was merged into the 2.2 branch.

Discussion
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[2.2][Form] remove MinCount and MaxCount constraints in ValidatorTypeGuesser

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | no
| License       | MIT
| Doc PR        |

MinCount and MaxCount has been removed and replaced by Count (in 2.2 also).

Commits
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58a3296 remove MinCount and MaxCount contraints. It has been replaced by Count constraints.