Remove federation debug flag from docs in 17.02

Still in BETA. Will add back in 17.11.
Reverts docs from commits:
9804997a
756a22fd

doc/man/man5/slurm.conf.5

@@ -604,9 +604,6 @@ AcctGatherEnergy debug info
 \fBExtSensors\fR
 External Sensors debug info
 .TP
-\fBFederation\fR
-Federation scheduling debug info
-.TP
 \fBFrontEnd\fR
 Front end node details
 .TP

doc/man/man5/slurmdbd.conf.5

@@ -225,9 +225,6 @@ in the database.
 .TP
 \fBDB_WCKEY\fR
 SQL statements/queries when dealing with wckeys in the database.
-.TP
-\fBFEDERATION\fR
-SQL statements/queries when dealing with federations in the database.
 .RE
 
 .TP