get rid of MatrixSpace_ZZ_2x2

[videlec]

With #17822 the timings of the generic integer matrix class in sage.matrix.matrix_integer_dense (using flint) are identical to the custom ones in sage.matrix.matrix_integer_2x2. With this ticket, we get rid of the latter.

Depends on #17822
Depends on #17837

Component: linear algebra

Author: Vincent Delecroix, Jeroen Demeyer

Branch/Commit: 8b75e98

Reviewer: Jeroen Demeyer, Vincent Delecroix

Issue created by migration from https://trac.sagemath.org/ticket/17824

[videlec]

New commits:

f7e6496	trac #17822: faster Matrix_integer_dense
1cb707b	trac #17822: use mpz_fits_ulong_p
555bcd2	trac #17822: TypeError -> ArithmeticError in _inverse_flint
2a3de63	trac #17824: remove matrix_integer_2x2.pyx and .pxd
5622781	trac #17824: deprecation and adaptation
efb3d55	trac #17824: adapt sage.modular

[videlec]

Branch: u/vdelecroix/17824

[videlec]

Commit: efb3d55

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

0a77864

trac #17824: fixed initialization

[sagetrac-git]

Changed commit from efb3d55 to 0a77864

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

766f1a5	Remove matrix_modn_dense
60b4314	trac #17824: merge #17837
511edd2	trac #17824: use unpickle_override

[sagetrac-git]

Changed commit from 0a77864 to 511edd2

[videlec]

Changed dependencies from #17822 to #17822, #17837

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

885673e	trac #17824: remove matrix_integer_2x2
9ef4c55	trac #17824: adapt sage.modular

[sagetrac-git]

Changed commit from 511edd2 to 9ef4c55