Temporarily remove pkill steps

We should be running pkill (or the platform-specific equivalent) at the
start and end of each build, but this is really a CI detail, not
something that is integral to the list of steps, so remove it for now.

buildbot/master/files/config/master.cfg

@@ -2,7 +2,6 @@
 # ex: set syntax=python:
 
 from buildbot.plugins import *
-from buildbot.status.results import SUCCESS
 
 from passwords import HTTP_USERNAME, HTTP_PASSWORD, SLAVE_PASSWORD, CHANGE_PASSWORD
 from passwords import GITHUB_DOC_TOKEN, GITHUB_STATUS_TOKEN, HOMU_BUILDBOT_SECRET
@@ -124,15 +123,13 @@ linux_rel_factory = create_servo_factory([
                        env=linux_headless_env,
                        logfiles={"test-wpt.log": "test-wpt.log",
                                  "wpt_errorsummary.log": "wpt_errorsummary.log"}),
-    #steps.ShellCommand(command=["pkill", "-x", "servo"], decodeRC={0: SUCCESS, 1: SUCCESS}),
     steps.ShellCommand(command=["gzip", "test-wpt.log"], env=linux_headless_env),
     steps.ShellCommand(command=["./mach", "test-css", "--release", "--processes", "16",
                                 "--log-raw", "test-css.log",
                                 "--log-errorsummary", "css_errorsummary.log"],
                        env=linux_headless_env,
                        logfiles={"test-css.log": "test-css.log",
                                  "css_errorsummary.log": "css_errorsummary.log"}),
-    #steps.ShellCommand(command=["pkill", "-x", "servo"], decodeRC={0: SUCCESS, 1: SUCCESS}),
     steps.ShellCommand(command=["gzip", "test-css.log"], env=linux_headless_env),
     steps.Compile(command=["./mach", "build-cef", "--release"], env=linux_headless_env),
     steps.Compile(command=["./mach", "build-geckolib", "--release"], env=linux_headless_env),
@@ -151,7 +148,6 @@ mac_rel_wpt_factory = create_servo_factory([
                        env=mac_test_env,
                        logfiles={"test-wpt.log": "test-wpt.log",
                                  "wpt_errorsummary.log": "wpt_errorsummary.log"}),
-    steps.ShellCommand(command=["pkill", "-x", "servo"], decodeRC={0: SUCCESS, 1: SUCCESS}),
     steps.ShellCommand(command=["gzip", "test-wpt.log"], env=mac_test_env),
     steps.ShellCommand(command=["./mach", "build-cef", "--release"], env=mac_test_env),
     steps.ShellCommand(command=["bash", "./etc/ci/lockfile_changed.sh"], env=mac_test_env),
@@ -175,7 +171,6 @@ mac_rel_css_factory = create_servo_factory([
                        env=mac_test_env,
                        logfiles={"test-css.log": "test-css.log",
                                  "css_errorsummary.log": "css_errorsummary.log"}),
-    steps.ShellCommand(command=["pkill", "-x", "servo"], decodeRC={0: SUCCESS, 1: SUCCESS}),
     steps.ShellCommand(command=["gzip", "test-css.log"], env=mac_test_env),
     steps.ShellCommand(command=["./mach", "build-geckolib", "--release"], env=mac_test_env),
     steps.ShellCommand(command=["bash", "./etc/ci/lockfile_changed.sh"], env=mac_test_env),