sphinx_ext: Drop text map for RAPI permissions
sphinx_ext: Drop text map for RAPI permissions

Other parts of the documentation directly refer to the constants through
“pyeval”. There's no need for this map as it's just additional work to
maintain.

Signed-off-by: Michael Hanselmann <68b67885ff74281219b4a4be33cc20fd45078d7c@google.com>
Reviewed-by: Iustin Pop <acf83a5274f31a43af6b914614365999469c1a31@google.com>

dimara/ganeti,ganeti/ganeti,bitemyapp/ganeti,apyrgio/ganeti,apyrgio/snf-ganeti,onponomarev/ganeti,mbakke/ganeti,grnet/snf-ganeti,andir/ganeti,grnet/snf-ganeti,ganeti/ganeti,leshchevds/ganeti,apyrgio/ganeti,onponomarev/ganeti,ganeti-github-testing/ganeti-test-1,leshchevds/ganeti,mbakke/ganeti,yiannist/ganeti,yiannist/ganeti,andir/ganeti,ganeti/ganeti,dimara/ganeti,apyrgio/snf-ganeti,mbakke/ganeti,ganeti-github-testing/ganeti-test-1,leshchevds/ganeti,bitemyapp/ganeti,yiannist/ganeti,andir/ganeti