remove unmaintained WASM support

Same reasoning as outlined in #1254

> nobody is interested in actively maintaining or contributing to that today.

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

.github/workflows/m1_ci.yml

@@ -26,5 +26,6 @@ jobs:
         run: zig build test
       - name: build
         run: zig build
-      - name: build (WASM)
-        run: zig build -Dtarget=wasm32-freestanding-none
+      # TODO: get WASM builds working
+      # - name: build (WASM)
+      #   run: zig build -Dtarget=wasm32-freestanding-none