Fix Watcher Applier variables in CamelCase

PEP8 standards call for instance variable names to be written
in the same manner as methods, with underscores separating words.
This fix addresses an instance variable  in the DeployPhase class.

As the instance variable seems public, the Java-ish getter and
setter mentioned in the bug report have been removed as well.

Change-Id: I8835315c8cae64665d3ccb321c4066e37a22c467
Closes-Bug: 1522489

watcher/applier/execution/deploy_phase.py

@@ -24,22 +24,16 @@ LOG = log.getLogger(__name__)
 class DeployPhase(object):
     def __init__(self, executor):
         # todo(jed) oslo_conf 10 secondes
-        self.maxTimeout = 100000
+        self.max_timeout = 100000
         self.commands = []
         self.executor = executor
 
-    def set_max_time(self, mt):
-        self.maxTimeout = mt
-
-    def get_max_time(self):
-        return self.maxTimeout
-
     def populate(self, action):
         self.commands.append(action)
 
     def execute_primitive(self, primitive):
-        futur = primitive.execute(primitive)
-        return futur.result(self.get_max_time())
+        future = primitive.execute(primitive)
+        return future.result(self.max_timeout)
 
     def rollback(self):
         reverted = sorted(self.commands, reverse=True)