Remove Python msrest/msrestazure from Autorest repo (Azure#1518)

* Remove msrest from Autorest repo

* Remove Python msrest from gulpfile

* Remove hack in msrestazure to read ../msrest

* Update dependencies of Python msrestazure to get msrest from PyPI

* Adding mock in msrestazure tests

* Simplify tox config for msrestazure

* msrestazure 0.4.4 (Azure#1514)

* Remove msrestazure Python

gulpfile.js

@@ -748,15 +748,12 @@ gulp.task('test:clientruntime:ruby', ['syncDependencies:runtime:ruby'], shell.ta
 gulp.task('test:clientruntime:rubyazure', ['syncDependencies:runtime:rubyazure'], shell.task('bundle exec rspec', { cwd: './src/client/Ruby/ms-rest-azure/', verbosity: 3 }));
 gulp.task('test:clientruntime:java', shell.task(basePathOrThrow() + '/gradlew :client-runtime:check', { cwd: './', verbosity: 3 }));
 gulp.task('test:clientruntime:javaazure', shell.task(basePathOrThrow() + '/gradlew :azure-client-runtime:check', { cwd: './', verbosity: 3 }));
-gulp.task('test:clientruntime:python', shell.task('tox', { cwd: './src/client/Python/msrest/', verbosity: 3 }));
-gulp.task('test:clientruntime:pythonazure', shell.task('tox', { cwd: './src/client/Python/msrestazure/', verbose:true }));
 
 gulp.task('test:clientruntime:javaauthjdk', shell.task(basePathOrThrow() + '/gradlew :azure-client-authentication:check', { cwd: './', verbosity: 3 }));
 gulp.task('test:clientruntime:javaauthandroid', shell.task(basePathOrThrow() + '/gradlew :azure-android-client-authentication:check', { cwd: './', verbosity: 3 }));
 gulp.task('test:clientruntime', function (cb) {
   runSequence('test:clientruntime:node', 'test:clientruntime:nodeazure',
     'test:clientruntime:ruby', 'test:clientruntime:rubyazure',
-    'test:clientruntime:python', 'test:clientruntime:pythonazure',
     'test:clientruntime:java', 'test:clientruntime:javaazure',
     'test:clientruntime:javaauthjdk', 'test:clientruntime:javaauthandroid', cb);
 });