Remove older MITM fixes to make compatible with dogtag 1.3.3

We set a new port to be used with dogtag but IPA doesn't utilize it.

This also changes the way we determine which security database to use.
Rather than using whether api.env.home is set use api.env.in_tree.

ipaserver/plugins/dogtag.py

@@ -1208,7 +1208,7 @@ class ra(rabase.rabase):
     Request Authority backend plugin.
     """
     def __init__(self):
-        if api.env.home:
+        if api.env.in_tree:
             self.sec_dir = api.env.dot_ipa + os.sep + 'alias'
             self.pwd_file = self.sec_dir + os.sep + '.pwd'
         else:
@@ -1452,8 +1452,8 @@ class ra(rabase.rabase):
 
         # Call CMS
         http_status, http_reason_phrase, http_headers, http_body = \
-            self._sslget('/ca/agent/ca/profileSubmitSSLClient',
-                         self.env.ca_agent_port,
+            self._sslget('/ca/ee/ca/profileSubmitSSLClient',
+                         self.env.ca_ee_port,
                          profileId='caIPAserviceCert',
                          cert_request_type=request_type,
                          cert_request=csr,

ipaserver/plugins/rabase.py

@@ -41,7 +41,7 @@ class rabase(Backend):
     Request Authority backend plugin.
     """
     def __init__(self):
-        if api.env.home:
+        if api.env.in_tree:
             self.sec_dir = api.env.dot_ipa + os.sep + 'alias'
             self.pwd_file = self.sec_dir + os.sep + '.pwd'
             self.serial_file = self.sec_dir + os.sep + 'ca_serialno'