Remove texlive from the install, with a migration for existing machines

Nothing in CoreDesktop uses LaTeX, and the texlive group is 22 packages
and about 3 GB. The migration removes it once, keeping any package from
the group that something else still needs as a dependency.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

migrations/1794082157.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# CoreDesktop installed the whole texlive group (22 packages, about 3 GB),
+# though nothing in it uses LaTeX. Remove it once. A package from the group
+# that something else still needs stays, marked as a dependency, to go with
+# that as an orphan.
+mapfile -t pkgs < <(pacman -Qgq texlive 2> /dev/null)
+(( ${#pkgs[@]} )) || exit 0
+
+sudo pacman -D --asdeps "${pkgs[@]}" > /dev/null || exit
+
+# The ones nothing needs now (-tt counts packages only optionally needed).
+# Removing them with -s takes the rest of the group, and the dependencies it
+# pulled in, unless something else needs them.
+mapfile -t unneeded < <(comm -12 <(printf '%s\n' "${pkgs[@]}" | sort) \
+  <(pacman -Qqdtt | sort))
+(( ${#unneeded[@]} )) || exit 0
+
+echo "Removing texlive..."
+sudo pacman -Rns --noconfirm "${unneeded[@]}"

packages.conf

@@ -94,7 +94,6 @@ DEV_TOOLS=(
   python-pygments
   rust
   starship
-  texlive
   tmux
   # nvim-treesitter builds its language parsers with the tree-sitter command
   tree-sitter-cli