[MINOR] Code refactor Bookie env check during start.

[lifepuzzlefun]

[MINOR] code refactor Bookie env check during start.

move bookie environment check logic code to BookieEnvirnmentChecker this may makes code much clearer.

no logic change or method delete.

[eolivelli]

@WJL3333 thanks for your patch.

is this a preparatory patch for some other contribution or is it a code cleanup without any other follow up work ?

[lifepuzzlefun]

@eolivelli thanks for reply. this patch is just code cleanup refactor, no more follow up work.

[lifepuzzlefun]

@fpj yes, this is just for organize propose~

[eolivelli]

@fpj do you think we can go ahead an merge this patch ?

[Ghatage]

@reddycharan can you PTAL?

[StevenLuMT]

fix old workflow,please see #3455 for detail