Bug 1553864 - Clean up some VS2015 PGO build config code r=nalexander

This code was already dead during the VS2017 era (since that compiler changed to the `Hostx64\x86` path scheme), let alone clang-cl.

Differential Revision: https://phabricator.services.mozilla.com/D33513

--HG--
extra : moz-landing-system : lando

build/pgo/profileserver.py

@@ -8,7 +8,6 @@ import json
 import os
 import sys
 
-from buildconfig import substs
 from mozbuild.base import MozbuildObject
 from mozfile import TemporaryDirectory
 from mozhttpd import MozHttpd
@@ -92,17 +91,6 @@ if __name__ == '__main__':
         # Ensure different pids write to different files
         env["LLVM_PROFILE_FILE"] = "default_%p_random_%m.profraw"
 
-        # For VC12+, make sure we can find the right bitness of pgort1x0.dll
-        if not substs.get('HAVE_64BIT_BUILD'):
-            for e in ('VS140COMNTOOLS', 'VS120COMNTOOLS'):
-                if e not in env:
-                    continue
-
-                vcdir = os.path.abspath(os.path.join(env[e], '../../VC/bin'))
-                if os.path.exists(vcdir):
-                    env['PATH'] = '%s;%s' % (vcdir, env['PATH'])
-                    break
-
         # Write to an output file if we're running in automation
         process_args = {}
         if 'UPLOAD_PATH' in env:

toolkit/mozapps/installer/packager.py

@@ -82,17 +82,6 @@ class ToolLauncher(object):
         for e in extra_env:
             env[e] = extra_env[e]
 
-        # For VC12+, make sure we can find the right bitness of pgort1x0.dll
-        if not buildconfig.substs.get('HAVE_64BIT_BUILD'):
-            for e in ('VS140COMNTOOLS', 'VS120COMNTOOLS'):
-                if e not in env:
-                    continue
-
-                vcdir = os.path.abspath(os.path.join(env[e], '../../VC/bin'))
-                if os.path.exists(vcdir):
-                    env['PATH'] = '%s;%s' % (vcdir, env['PATH'])
-                    break
-
         # Work around a bug in Python 2.7.2 and lower where unicode types in
         # environment variables aren't handled by subprocess.
         for k, v in env.items():