Remove the SDL2 example

If someone cares to work out why it doesn't compile and bring it back
then they can do. But I don't, and we need CI to be working.

Author: DJMcNab

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ env:
   FEATURES_DEPENDING_ON_STD: "std,default"
   # List of packages that can not target Wasm.
   # `vello_tests` uses `nv-flip`, which doesn't support Wasm.
-  NO_WASM_PKGS: "--exclude vello_tests --exclude simple_sdl2"
+  NO_WASM_PKGS: "--exclude vello_tests"
   # The files stored in LFS the tests need to access, in JSON format
   LFS_FILES: '["vello_tests/snapshots/*.png", "sparse_strips/vello_cpu/snapshots/*.png"]'
 

Cargo.lock

@@ -10,7 +10,6 @@ members = [
     "examples/run_wasm",
     "examples/scenes",
     "examples/simple",
-    "examples/simple_sdl2",
     "examples/with_winit",
 
     "sparse_strips/vello_api",
@@ -28,8 +27,7 @@ members = [
 #
 # NOTE: When bumping this, remember to also bump the aforementioned other packages'
 #       version in the dependencies section at the bottom of this file.
-#       Additionally, bump the Vello dependency version in the 'simple'
-#       and `simple_sdl2` examples.
+#       Additionally, bump the Vello dependency version in the 'simple' example.
 version = "0.4.0"
 
 edition = "2024"