Revert "feat: conditional features for SDL2 for Linux"

This reverts commit b7ce4b6a.

frontends/sdl/Cargo.toml

@@ -11,10 +11,8 @@ edition = "2018"
 path = "../.."
 
 [dependencies.sdl2]
-sdl2 = { version = "0.35", features = ["ttf", "image", "gfx", "mixer", "static-link", "use-vcpkg"] }
-
-[target.'cfg(linux)'.dependencies]
-sdl2 = { version = "0.35", features = ["ttf", "image", "gfx", "mixer", "bundled"] }
+version = "0.35"
+features = ["ttf", "image", "gfx", "mixer", "static-link", "use-vcpkg"]
 
 [package.metadata.vcpkg]
 dependencies = ["sdl2", "sdl2-image[libjpeg-turbo,tiff,libwebp]", "sdl2-ttf", "sdl2-gfx", "sdl2-mixer"]