Remove from eg-rest Map controller
Remove from eg-rest Map controller

Previously in https://github.com/EnsemblGenomes/eg-rest/commit/9e1a23b85c317eb7c8a162319a90d88f8d4bd3cc,
Map controller was added to eg-rest as a temporary solution to override the behaviour at ensembl-rest,
while waiting for the pull request (https://github.com/Ensembl/ensembl-rest/pull/161) to be merged.

Now with addition of test cases for that pull request, it has been merged into ensembl-rest master
branch. The change will go into release/87 branch and hence the temporary solution on eg-rest is
no longer required on master branch.

This should complete ENSEMBL-4667.

EnsemblGenomes/eg-rest,EnsemblGenomes/eg-rest