Remove redundant functions from pari_instance.pyx

[jdemeyer]

Many functions in src/sage/libs/pari/pari_instance.pyx are just manual copies of auto-generated code. Remove those functions, but keep the doctests in src/sage/libs/pari/tests.py.

Depends on #20210
Depends on #20205
Depends on #20213
Depends on #20216

CC: @defeo

Component: interfaces

Author: Jeroen Demeyer

Branch/Commit: d7d2d7d

Reviewer: Luca De Feo

Issue created by migration from https://trac.sagemath.org/ticket/20217

[jdemeyer]

Dependencies: #20210, #20205, #20213, #20216

[jdemeyer]

Branch: u/jdemeyer/remove_redundant_functions_from_pari_instance_pyx

[jdemeyer]

Commit: d7d2d7d

[jdemeyer]

New commits:

03458ea	Upgrade cysignals package
dce67fc	Move memory functions to cysignals
4bb8337	Rename sage_malloc -> sig_malloc and friends
5ab73c1	Get rid of factorint_withproof_sage in PARI interface
c0ed97a	Stop using deprecated PARI factoring features
edc5ce2	Merge branch 't/20205/get_rid_of_factorint_withproof_sage_in_pari_interface' into HEAD
5fb408d	Replace pari_catch_sig_on by sig_on
d5c934c	Deprecate PARI nth_prime and prime_list
d7d2d7d	Remove redundant functions from pari_instance.pyx

[jdemeyer]

Author: Jeroen Demeyer

[defeo]

comment:4

I just doctested this. All tests pass.

I suggest one more removal: default(self, variable, value=None).

[defeo]

comment:5

Since the default function is to be dealt in #20224, I have no more objections.

[defeo]

Reviewer: Luca De Feo

[vbraun]

Changed branch from u/jdemeyer/remove_redundant_functions_from_pari_instance_pyx to d7d2d7d