[GHC] #8434: dynflag dependency addition in TcRnDriver is not needed anymore

[GHC]

#8434: dynflag dependency addition in TcRnDriver is not needed anymore
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       Reporter:  errge                    |             Owner:
           Type:  task                     |            Status:  new
       Priority:  normal                   |         Milestone:  7.8.1
      Component:  Compiler                 |           Version:  7.6.3
       Keywords:                           |  Operating System:
   Architecture:  Unknown/Multiple         |  Unknown/Multiple
     Difficulty:  Easy (less than 1 hour)  |   Type of failure:  Other
     Blocked By:                           |         Test Case:
Related Tickets:                           |          Blocking:
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 The removed parts of the tcRnImports function in the attached patch says
 that there is a check in LoadIface.loadInterface and this is why it's
 needed to add the plugin dependencies to the EPS.

 But actually [[GhcFile(compiler/iface/LoadIface.lhs#L227)]] says that the
 check is no longer there.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8434>
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