Remove SAML authentication (#15568)

* remove saml

* remove license file and management command

* update requirements, add migrations

* remove unused imports

1 files changed, 0 insertions, 63 deletions

diff --git a/licenses/lxml.txt b/licenses/lxml.txt
deleted file mode 100644
index 76c02ef807..0000000000
--- a/licenses/lxml.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-lxml is copyright Infrae and distributed under the BSD license (see
-doc/licenses/BSD.txt), with the following exceptions:
-
-Some code, such a selftest.py, selftest2.py and
-src/lxml/_elementpath.py are derived from ElementTree and
-cElementTree. See doc/licenses/elementtree.txt for the license text.
-
-lxml.cssselect and lxml.html are copyright Ian Bicking and distributed
-under the BSD license (see doc/licenses/BSD.txt).
-
-test.py, the test-runner script, is GPL and copyright Shuttleworth
-Foundation. See doc/licenses/GPL.txt. It is believed the unchanged
-inclusion of test.py to run the unit test suite falls under the
-"aggregation" clause of the GPL and thus does not affect the license
-of the rest of the package.
-
-The doctest.py module is taken from the Python library and falls under
-the PSF Python License.
-
-The isoschematron implementation uses several XSL and RelaxNG resources:
- * The (XML syntax) RelaxNG schema for schematron, copyright International
-   Organization for Standardization (see 
-   src/lxml/isoschematron/resources/rng/iso-schematron.rng for the license
-   text)
- * The skeleton iso-schematron-xlt1 pure-xslt schematron implementation
-   xsl stylesheets, copyright Rick Jelliffe and Academia Sinica Computing
-   Center, Taiwan (see the xsl files here for the license text: 
-   src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/)
- * The xsd/rng schema schematron extraction xsl transformations are unlicensed
-   and copyright the respective authors as noted (see 
-   src/lxml/isoschematron/resources/xsl/RNG2Schtrn.xsl and
-   src/lxml/isoschematron/resources/xsl/XSD2Schtrn.xsl)
-
-doc/licenses/BSD.txt:
-Copyright (c) 2004 Infrae. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-  1. Redistributions of source code must retain the above copyright
-     notice, this list of conditions and the following disclaimer.
-   
-  2. Redistributions in binary form must reproduce the above copyright
-     notice, this list of conditions and the following disclaimer in
-     the documentation and/or other materials provided with the
-     distribution.
-
-  3. Neither the name of Infrae nor the names of its contributors may
-     be used to endorse or promote products derived from this software
-     without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INFRAE OR
-CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.