Bug 1348360 - Fix flake8 linter errors in update_job_priority.py

These were hidden by the use of `# flake8: noqa`.

treeherder/seta/update_job_priority.py:12:1: F401 'copy' imported but unused
treeherder/seta/update_job_priority.py:14:1: F401 'json' imported but unused
treeherder/seta/update_job_priority.py:16:1: F401 'os' imported but unused
treeherder/seta/update_job_priority.py:17:1: F401 'time' imported but unused
treeherder/seta/update_job_priority.py:54:1: E302 expected 2 blank lines, found 1
treeherder/seta/update_job_priority.py:104:1: E302 expected 2 blank lines, found 1
treeherder/seta/update_job_priority.py:126:1: E302 expected 2 blank lines, found 1
treeherder/seta/update_job_priority.py:129:1: E302 expected 2 blank lines, found 1
treeherder/seta/update_job_priority.py:144:1: E302 expected 2 blank lines, found 1
treeherder/seta/update_job_priority.py:192:23: E127 continuation line over-indented for visual indent

treeherder/seta/update_job_priority.py

@@ -9,12 +9,8 @@
    the same set of jobs. Unfortunately, this is less than ideal if we want to make this
    work for project repositories.
 '''
-import copy
 import datetime
-import json
 import logging
-import os
-import time
 
 from treeherder.etl.seta import (parse_testtype,
                                  valid_platform)
@@ -51,6 +47,7 @@ def _unique_key(job):
                       buildtype=str(job['platform_option']),
                       platform=str(job['platform']))
 
+
 def _sanitize_data(runnable_jobs_data):
     """We receive data from runnable jobs api and return the sanitized data that meets our needs.
 
@@ -101,6 +98,7 @@ def _sanitize_data(runnable_jobs_data):
 
     return sanitized_list
 
+
 def query_sanitized_data(repo_name='mozilla-inbound'):
     """Return sanitized jobs data based on runnable api. None if failed to obtain or no new data.
 
@@ -123,9 +121,11 @@ def query_sanitized_data(repo_name='mozilla-inbound'):
     runnable_jobs = RunnableJobsClient().query_runnable_jobs(repo_name)
     return _sanitize_data(runnable_jobs)
 
+
 def _two_weeks_from_now():
     return datetime.datetime.now() + datetime.timedelta(days=14)
 
+
 def _initialize_values():
     logger.info('Fetch all rows from the job priority table.')
     # Get all rows of job priorities
@@ -141,6 +141,7 @@ def _initialize_values():
         # into high value jobs.
         return jp_index, SETA_LOW_VALUE_PRIORITY, None
 
+
 def _update_table(data):
     """Add new jobs to the priority table and update the build system if required.
     data - it is a list of dictionaries that describe a job type
@@ -189,7 +190,7 @@ def _update_table(data):
                 failed_changes += 1
 
     logger.info('We have {} new jobs and {} updated jobs out of {} total jobs '
-                      'processed.'.format(new_jobs, updated_jobs, total_jobs))
+                'processed.'.format(new_jobs, updated_jobs, total_jobs))
 
     if failed_changes != 0:
         logger.warning('We have failed {} changes out of {} total jobs processed.'.format(