Environment variable OSMO_GSM_TESTER_CONF is marked as deprecated and an
error is logged each time it's used. Same feature is available through
"-c" command line parameters, so having the envvar only makes things
more complex for no good reason. It cannot yet be completely dropped
since some environemnt still make use of it. Give some time to users to
adapt their setups.
Other environment variables setting some config apths can be dropped
since they are not being really used in any setup.
Change-Id: I7eb69f870d0dcb5906d45ae067d6bed1aabf5862
Pau Espin
06c82aee5c