rebuild(swift), ci(packages): Clear out more space for Swift and log how much space there is

.github/workflows/packages.yml

@@ -175,7 +175,7 @@ jobs:
         done
 
         if [ ! -z "$packages" ]; then
-          if grep -q 'rust' <<< "${packages}"; then
+          if grep -q ' rust\|swift ' <<< "${packages}"; then
             sudo apt purge -yq $(dpkg -l | grep '^ii' | awk '{ print $2 }' | grep -P '(aspnetcore|cabal-|dotnet-|ghc-|libmono|php)') \
               firefox google-chrome-stable microsoft-edge-stable mono-runtime-common monodoc-manual ruby
             sudo apt autoremove -yq
@@ -184,7 +184,11 @@ jobs:
           if grep -q ' clvk\|dart\|libllvm\|rust\|rustc-nightly\|swift\|tinygo\|wasmer\|zig\|firefox ' <<< "$packages"; then
             ./scripts/setup-ubuntu.sh
             sudo apt install ninja-build
+            # github CI is often running out of disk space for large packages,
+            # so these df checks will let us know how much there was.
+            df -h
             NDK=$ANDROID_NDK_ROOT ANDROID_HOME=$ANDROID_SDK_ROOT ./build-package.sh -I -a ${{ matrix.target_arch }} $packages
+            df -h
           else
             ./scripts/run-docker.sh ./build-package.sh -I -a ${{ matrix.target_arch }} $packages
           fi

packages/swift/build.sh

@@ -103,7 +103,6 @@ termux_step_host_build() {
 	if [ "$TERMUX_ON_DEVICE_BUILD" = "false" ]; then
 		termux_setup_cmake
 		termux_setup_ninja
-		termux_setup_swift
 
 		local CLANG=$(command -v clang)
 		local CLANGXX=$(command -v clang++)