Simplify requirements

-use rdiff-backup[meta]

Author: mreid-tt

spk/rdiff-backup/src/requirements-crossenv.txt

@@ -1,9 +1,5 @@
 # Generated using the requirements script on March 2, 2025
 
-cffi==1.17.1
-charset_normalizer==3.4.1
-cryptography==44.0.2
-nh3==0.2.21
 psutil==7.0.0
 pylibacl==0.7.2
 pyxattr==0.8.1

spk/rdiff-backup/src/requirements-pure.txt

@@ -1,31 +1,3 @@
 # Generated using the requirements script on March 2, 2025
 
-build==1.2.2.post1
-#certifi                    ==> py312
-docutils==0.21.2
-id==1.5.0
-idna==3.10
-jaraco.classes==3.4.0
-jaraco.context==6.0.1
-jaraco.functools==4.1.0
-jeepney==0.9.0
-keyring==25.6.0
-markdown_it_py==3.0.0
-mdurl==0.1.2
-more_itertools==10.6.0
-packaging==24.2
 #pip                        ==> py312
-pycparser==2.22
-pygments==2.19.1
-pyproject_hooks==1.2.0
-readme_renderer==44.0
-requests==2.32.3
-requests_toolbelt==1.0.0
-rfc3986==2.0.0
-rich==13.9.4
-SecretStorage==3.3.3
-#setuptools                 ==> py312
-setuptools_scm==8.2.0
-twine==6.1.0
-urllib3==2.3.0
-#wheel                      ==> py312