drivers: remove tap_esc

- it's not used anymore
- it would need a refactoring to use mixer_module

Tools/uorb_graph/create.py

@@ -223,7 +223,6 @@ class Graph(object):
     ('listener', r'.*', None, r'^(id)$'),
     ('logger', r'.*', None, r'^(topic|sub\.metadata|_polling_topic_meta)$'),
 
-    ('tap_esc', r'.*', r'\b_control_topics\[[0-9]\]=([^,)]+)', r'^_control_topics\[i\]$'),
     ('snapdragon_pwm_out', r'.*', r'\b_controls_topics\[[0-9]\]=([^,)]+)', r'^_controls_topics\[i\]$'),
     ]
         special_cases_sub = [(a, re.compile(b), re.compile(c) if c is not None else None, re.compile(d))