gnu: Remove unreferenced nss/fixed.

* gnu/packages/nss.scm (nss/fixed): Remove variable.
* gnu/packages/patches/nss-CVE-2021-43527.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu: josm: Update to 18303.

* gnu/packages/geo.scm (josm): Update to 18303.

Signed-off-by: Julien Lepiller <julien@lepiller.eu>

gnu: libosmium: Update to 2.17.2.

* gnu/packages/geo.scm (libosmium): Update to 2.17.2.

Signed-off-by: Julien Lepiller <julien@lepiller.eu>

gnu: imposm3: Update to 0.11.1.

* gnu/packages/geo.scm (imposm3): Update to 0.11.1.

Signed-off-by: Julien Lepiller <julien@lepiller.eu>

gnu: Add r-singler.

* gnu/packages/bioconductor.scm (r-singler): New variable.

gnu: Add r-celldex.

* gnu/packages/bioconductor.scm (r-celldex): New variable.

gnu: komikku: Use new style.

* gnu/packages/gnome.scm (komikku)[native-inputs]: Remove labels.

gnu: komikku: Build with old webkit.

* gnu/packages/gnome.scm (komikku)[inputs]: Use webkitgtk-with-libsoup2.

gnu: rtv: Disable sanity check.

* gnu/packages/syndication.scm (rtv)[arguments]: Delete phase.

gnu: python-vcrpy: Fix test failure.

* gnu/packages/python-check.scm (python-vcrpy)[arguments]: Don't override
PYTHONPATH.

gnu: python-magic: Work around crash on .crx files.

* gnu/packages/patches/python-magic-python-bytecode.patch: New file.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.
* gnu/packages/python-xyz.scm (python-magic)[source](patches): Add it.
[inputs]: Add FILE-NEXT.
[arguments]: While at it, remove input labels.
* gnu/packages/diffoscope.scm (diffoscope)[native-inputs]: Add FILE-NEXT.

gnu: file: Add 5.41.

* gnu/packages/file.scm (file-next): New variable.

gnu: python-magic: Run more tests.

* gnu/packages/python-xyz.scm (python-magic): Invoke one more test file.

gnu: python-daemon: Fix test failure.

* gnu/packages/python-xyz.scm (python-daemon)[arguments]: Patch one test &
remove trailing #t.

chromium-extension: Build .crx files in a deterministic fashion.

* gnu/build/chromium-extension.scm (make-crx): Pass #:keep-mtime? #t to
COPY-RECURSIVELY.  Remove defunct FAKETIME workaround.  While at it, pack the
extension in the scratch working directory instead of the transient
store-mapped /tmp.

chromium-extension: Avoid usage of gcrypt at evaluation time.

* gnu/build/chromium-extension.scm (make-signing-key): Wrap builder in
with-extensions, and compute the seed checksum at build time.

chromium-extension: Reduce imported-modules scope.

* gnu/build/chromium-extension.scm (make-crx): Delay with-imported-modules
until the builder code.
(crx->chromium-json): Remove needless define* while at it.

chromium-extension: Simplify builder code.

* gnu/build/chromium-extension.scm (chromium-json->profile-object): Remove
variable.
(file-sha256): New variable.
(make-chromium-extension): Rename OUTPUT parameter to prevent conflict.
Adjust other variable names for clarity.
[inputs]: Clear.
[arguments]: Inline and simplify the final transformation with a gexp.

gnu: ungoogled-chromium: Improve Vulkan support.

* gnu/packages/chromium.scm (ungoogled-chromium)[arguments]: Add absolute
reference to libvulkan.so.1.  Install SwiftShader support files.
[inputs]: Add VULKAN-LOADER.

gnu: ungoogled-chromium: Unexpire accelerated video decoding.

* gnu/packages/patches/ungoogled-chromium-accelerated-video-decode.patch: New file.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.
* gnu/packages/chromium.scm (%guix-patches): Add it.