cleanup: Drop never used path for httpd's ccache

`HTTP_CCACHE` path was introduced in [0], but hasn't been set as
gssproxy's cred_store option(`ccache`) and nowhere is really
used besides the removing of this not existed path. It is safe to
drop all referencies for `HTTP_CCACHE`.

As of 0.8.0[1] gssproxy uses `MEMORY` credentials type for cred_store
as default.

[0]: https://github.com/freeipa/freeipa/commit/d2f5fc304f1938d23171ae330fa20b213ceed54e
[1]: https://github.com/gssapi/gssproxy/commit/0e1b4a0c8400f1c9c6cc4915942a8df47e0c1410

Signed-off-by: Stanislav Levin <slev@altlinux.org>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>

ipaplatform/base/paths.py

@@ -387,7 +387,6 @@ class BasePathNamespace:
     IPA_ODS_EXPORTER_CCACHE = "/var/opendnssec/tmp/ipa-ods-exporter.ccache"
     VAR_RUN_DIRSRV_DIR = "/run/dirsrv"
     IPA_CCACHES = "/run/ipa/ccaches"
-    HTTP_CCACHE = "/var/lib/ipa/gssproxy/http.ccache"
     CA_BUNDLE_PEM = "/var/lib/ipa-client/pki/ca-bundle.pem"
     KDC_CA_BUNDLE_PEM = "/var/lib/ipa-client/pki/kdc-ca-bundle.pem"
     IPA_RENEWAL_LOCK = "/run/ipa/renewal.lock"

ipaplatform/redhat/tasks.py

@@ -519,7 +519,6 @@ class RedHatTaskNamespace(BaseTaskNamespace):
             paths.GSSPROXY_CONF,
             dict(
                 HTTP_KEYTAB=paths.HTTP_KEYTAB,
-                HTTP_CCACHE=paths.HTTP_CCACHE,
                 HTTPD_USER=constants.HTTPD_USER,
                 IPAAPI_USER=ipaapi_user,
                 SWEEPER_SOCKET=paths.IPA_CCACHE_SWEEPER_GSSPROXY_SOCK,

ipaserver/install/httpinstance.py

@@ -172,7 +172,6 @@ class HTTPInstance(service.Service):
         # Clean up existing ccaches
         # Make sure that empty env is passed to avoid passing KRB5CCNAME from
         # current env
-        ipautil.remove_file(paths.HTTP_CCACHE)
         shutil.rmtree(paths.IPA_CCACHES)
         ipautil.run(
             [paths.SYSTEMD_TMPFILES, '--create', '--prefix', paths.IPA_CCACHES]
@@ -543,7 +542,6 @@ class HTTPInstance(service.Service):
         # Remove the configuration files we create
         ipautil.remove_keytab(self.keytab)
         remove_files = [
-            paths.HTTP_CCACHE,
             paths.HTTPD_CERT_FILE,
             paths.HTTPD_KEY_FILE,
             paths.HTTPD_PASSWD_FILE_FMT.format(host=api.env.host),