CLDC-4141: untrack temp csv export files

lib/tasks/csv_export_conversion.rake

@@ -1,27 +0,0 @@
-namespace :export do
-  desc "Export data to CSV"
-  task csv: :environment do
-
-    File.open("csv_export.csv", "w") do |file|
-      DATA_ARRAY.each do |row|
-        file.puts row.map { |val|
-          if val.nil?
-            "" # nil becomes empty
-          else
-            str = val.to_s
-            if str.include?(",") || str.include?("\n") || str.include?('"')
-              '"' + str.gsub('"', '""') + '"'  # quote only when needed
-            else
-              str
-            end
-          end
-        }.join(",")
-      end
-    end
-
-    puts "CSV exported to csv_export.csv"
-  end
-end
-
-# array to convert goes here
-DATA_ARRAY = []