Small fix to not multiply declare a variable.
Small fix to not multiply declare a variable.

james-monkeyshines/ensembl,muffato/ensembl,willmclaren/ensembl,muffato/ensembl,james-monkeyshines/ensembl,Ensembl/ensembl,willmclaren/ensembl,at7/ensembl,mjg17/ensembl,muffato/ensembl,muffato/ensembl,danstaines/ensembl,at7/ensembl,danstaines/ensembl,Ensembl/ensembl,mjg17/ensembl,mjg17/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl,mjg17/ensembl,james-monkeyshines/ensembl,danstaines/ensembl,Ensembl/ensembl,at7/ensembl,at7/ensembl