refactor(ngModelController): removed redundant this.$validators initialisation

[harrastia]

Same initialisation already exists two lines above the one removed

[mary-poppins]

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[petebacondarwin]

@tbosch should include this in his refactoring #8941

[petebacondarwin]

@harrastia - can you please sign the CLA?

[Narretz]

I checked, this is part of the refactoring in #8941

[tbosch]

Closing this, as part of #8941 which just landed in master.

[harrastia]

Hi, thanks for checking this, i signed the CLA in another (personal) account so will have that ready for any further contributions.

[Narretz]

That'd good! Contributions are always welcome.