disabled ncRNA sources for Zmays as we have no such data for this species

misc-scripts/xref_mapping/xref_config.ini

@@ -6880,9 +6880,9 @@ source      = miRBase::MULTI
 source      = RefSeq_dna::MULTI-Plants
 source      = RefSeq_mRNA_predicted::MULTI
 source      = RefSeq_peptide::MULTI-Plants
-source      = RFAM::EG
-source      = RNAMMER::MULTI
-source      = TRNASCAN_SE::MULTI
+#source      = RFAM::EG
+#source      = RNAMMER::MULTI
+#source      = TRNASCAN_SE::MULTI
 source      = UniGene::zea_mays
 source      = UniParc::MULTI
 source      = Uniprot/SPTREMBL::MULTI