cleaned up some comments, dead code

Author: isaisabel

scripts/techniques_from_data_source.py

@@ -9,6 +9,7 @@
 
 def data_sources():
     """returns all data sources in Enterprise ATT&CK"""
+
     all_data_srcs = []
 
     # Get all techniques in Enterprise ATT&CK
@@ -26,18 +27,15 @@ def data_sources():
 
 def techniques(data_source):
     """returns all techniques which contain the given data source."""
-    # Get all techniques that have Windows Registry as a data source
+    
     techs_with_data_src = tc_src.query([
         Filter("type", "=", "attack-pattern"),
         Filter("x_mitre_data_sources", "in", data_source)
     ])
 
     return techs_with_data_src
 
-
-
 if __name__ == "__main__":
-
     parser = argparse.ArgumentParser(
         description="Fetches the current ATT&CK STIX 2.0 objects from the ATT&CK TAXII server, prints all of the data sources listed in Enterprise ATT&CK, and then lists all the Enterprise techniques containing a given data source."
     )
@@ -53,7 +51,7 @@ def techniques(data_source):
     print("\n".join(data_sources()))
     print("\n")
 
-    selected_ds = "Windows Registry"
+    # get techniques from the specified data source
     technique_list = techniques(args.data_source)
     # Get names of techniques
     tech_names = [tech.name for tech in technique_list]