Update Heroku pre_compile hook

bin/pre_compile

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# heroku pre_compile script
+# Heroku pre_compile script
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 pushd $DIR/..
@@ -8,8 +8,9 @@ pushd $DIR/..
 # https://github.com/heroku/heroku-buildpack-python/blob/master/bin/steps/cryptography
 # to avoid making it a requirement for other build systems, we'll inject it now
 # into the requirements.txt file
-# remove pymssql, it doesn't compile on heroku
-grep -v '^pymssql' requirements_all_ds.txt >> requirements.txt
+
+# Remove Heroku unsupported Python packages:
+grep -v -E "^(pymssql|thrift|sasl|pyhive)" requirements_all_ds.txt >> requirements.txt
 
 # make the heroku Procfile the active one
 cp Procfile.heroku Procfile