Bump version to 3.25.0

[kenodegard]

Changelog: https://github.com/conda/conda-build/blob/3.25.0/CHANGELOG.md
Requirements: https://github.com/conda/conda-build/blob/3.25.0/pyproject.toml

Additional changes:

• Include simplified build script
• Remove patches
• Update in-line with conda canary recipe

[anaconda-pkg-build]

Linter check found the following problems:

The following problems have been found:

ERROR: /tmp/abs_2db69fpdrn/clone/recipe/meta.yaml:28: patch_unnecessary: patch should not be in build when source/patches is not set
ERROR: /tmp/abs_2db69fpdrn/clone/recipe/meta.yaml:32: no_git_on_windows: git should not be used as a dependency on Windows.
ERROR: /tmp/abs_2db69fpdrn/clone/recipe/meta.yaml:37: missing_wheel: For pypi packages, wheel should be present in the host section
WARNING: /tmp/abs_2db69fpdrn/clone/recipe/meta.yaml:50: build_tools_must_be_in_build: The build tool m2-patch is not in the build section.
WARNING: /tmp/abs_2db69fpdrn/clone/recipe/meta.yaml:50: build_tools_must_be_in_build: The build tool patch is not in the build section.
WARNING: /tmp/abs_2db69fpdrn/clone/recipe/meta.yaml:51: python_build_tool_in_run: The python build tool packaging is in run depends
ERROR: /tmp/abs_2db69fpdrn/clone/recipe/meta.yaml:91: missing_pip_check: For pypi packages, pip check should be present in the test commands
Errors were found

[anaconda-pkg-build]

Linter check found the following problems:

The following problems have been found:

ERROR: /tmp/abs_03yjgw3cz1/clone/recipe/meta.yaml:28: patch_unnecessary: patch should not be in build when source/patches is not set
ERROR: /tmp/abs_03yjgw3cz1/clone/recipe/meta.yaml:32: no_git_on_windows: git should not be used as a dependency on Windows.
WARNING: /tmp/abs_03yjgw3cz1/clone/recipe/meta.yaml:51: build_tools_must_be_in_build: The build tool patch is not in the build section.
WARNING: /tmp/abs_03yjgw3cz1/clone/recipe/meta.yaml:51: build_tools_must_be_in_build: The build tool m2-patch is not in the build section.
Errors were found

[anaconda-pkg-build]

Linter check found the following problems:

The following problems have been found:

ERROR: /tmp/abs_c3r6xsaqoj/clone/recipe/meta.yaml:28: patch_unnecessary: patch should not be in build when source/patches is not set
Errors were found

[skupr-anaconda]

The git conda package shouldn't be used in build on win-64. The build workers have cygwin git already installed so it is not necessary.

Any usage of git should be replaced with git # [not win], see anaconda/anaconda-linter#189 (comment)

[skupr-anaconda]

LGTM

[anaconda-pkg-build]

Linter check found the following problems:

The following problems have been found:

ERROR: /tmp/abs_3ew0niox42/clone/recipe/meta.yaml:28: patch_unnecessary: patch should not be in build when source/patches is not set
Errors were found