This reverts commit 78a832d0fd7ff445c707809134dbb2a42d2a9e03.

Show help only for the enabled OAuth Providers on oauth-providers-help block

aria: { describedby: help_block_id } instead of 'aria-describedby' => help_block_id

provider and not p

a more simple approach to the OmniAuth helper links for oauth-providers-help