Remove unused function from a visualisation script

visualisation/SortedFrequencies.py

@@ -3,9 +3,6 @@
 from GEODE import tabular
 import sys
 
-def ticks(l):
-    return [i+0.5 for i in range(len(l))]
-
 def sortedHistogram(inputTSV, outputTSV, column):
     rows = tabular(inputTSV)
     groups = rows.groupby(column).size().sort_values(ascending=False)