Remove old rescue_time importer

deprecated_importers/rescuetime/Gemfile

@@ -1,3 +0,0 @@
-source "https://rubygems.org"
-
-gem "pry"

deprecated_importers/rescuetime/Gemfile.lock

@@ -1,17 +0,0 @@
-GEM
-  remote: https://rubygems.org/
-  specs:
-    coderay (1.1.2)
-    method_source (0.9.2)
-    pry (0.12.2)
-      coderay (~> 1.1.0)
-      method_source (~> 0.9.0)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  pry
-
-BUNDLED WITH
-   2.0.1

deprecated_importers/rescuetime/README.md

@@ -1,9 +0,0 @@
-# Rescuetime
-
-Copy the latest archive from [https://www.rescuetime.com/accounts/your-data](https://www.rescuetime.com/accounts/your-data) to this folder, unzipped (the `.csv` file)
-
-```
-bundle exec ruby run.rb
-```
-
-Upload `computer_usage.csv` to the bot

deprecated_importers/rescuetime/run.rb

@@ -1,28 +0,0 @@
-require 'csv'
-require 'date'
-
-file = "rescuetime-activity-history.csv"
-
-puts "starting to parse #{file}, this might take a while"
-
-data = CSV.read(file) # this has `1,137,918` rows in my case
-final_data = {}
-
-data.each do |row|
-  # => ["2013-08-22 00:00:00 -0700", "adium", "No Details", "Communication & Scheduling", "Instant Message", "222"]
-  date = Date.parse(row[0])
-  minutes = row[5]
-
-  final_data[date] ||= 0
-  final_data[date] += minutes.to_i
-end
-
-csv = "Date;dailyComputerUse"
-
-final_data.each do |date, value|
-  csv << "\n#{date.strftime("%d.%m.%Y")};#{(value / 60.0).round}"
-end
-
-puts csv
-
-File.write("computer_usage.csv", csv)