UnionOfIntervals.__contains__ doctest tests str

[jdemeyer]

It is documented that the input of __contains__ should be a real number, yet there is this doctest:

            sage: 'a' in A
            False

This will break after #22029.

Since this test is meaningless, it should just be removed.

CC: @JohnCremona

Component: coercion

Author: Jeroen Demeyer

Branch/Commit: 6a8b25b

Reviewer: Frédéric Chapoton

Issue created by migration from https://trac.sagemath.org/ticket/26947

[jdemeyer]

Branch: u/jdemeyer/unionofintervals___contains___doctest_tests_str

[jdemeyer]

New commits:

6a8b25b

Remove UnionOfIntervals.__contains__ test with str input

[jdemeyer]

Commit: 6a8b25b

[jdemeyer]

Author: Jeroen Demeyer

[fchapoton]

comment:3

ok

[fchapoton]

Reviewer: Frédéric Chapoton

[vbraun]

Changed branch from u/jdemeyer/unionofintervals___contains___doctest_tests_str to 6a8b25b