add a functional test for creating an EE, remove bum copy function because it's not needed, copy works from the base class

moved AWXKit pull additions to separate PR and made some changes that were causing linting errors in tests and add copy to show_capabilities for the ee serializer

awx/main/models/execution_environments.py

@@ -3,7 +3,6 @@ from django.utils.translation import ugettext_lazy as _
 
 from awx.api.versioning import reverse
 from awx.main.models.base import CommonModel
-from awx.main.utils import copy_model_by_class, copy_m2m_relationships
 
 
 __all__ = ['ExecutionEnvironment']
@@ -50,21 +49,5 @@ class ExecutionEnvironment(CommonModel):
         help_text=_('Pull image before running?'),
     )
 
-    def copy_execution_environment(self):
-        '''
-        Returns saved object, including related fields.
-        Create a copy of this unified job template.
-        '''
-        execution_environment_class = self.__class__
-        fields = (f.name for f in self.Meta.fields)
-        execution_environment_copy = copy_model_by_class(self, execution_environment_class, fields, {})
-
-        time_now = now()
-        execution_environment_copy.name = execution_environment_copy.name.split('@', 1)[0] + ' @ ' + time_now.strftime('%I:%M:%S %p')
-
-        execution_environment_copy.save()
-        copy_m2m_relationships(self, execution_environment_copy, fields)
-        return execution_environment_copy
-
     def get_absolute_url(self, request=None):
         return reverse('api:execution_environment_detail', kwargs={'pk': self.pk}, request=request)