servoshell: Remove duplicate egl bindings on android/ohos (#34716)

- The default value for SwapInterval is 1,
  so setting it to 1 changes nothing
- We don't clear the screen immediately anymore, which was the only
  useage of the egl bindings

this saves us from duplicated EGL bindings.

Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>

ports/servoshell/egl/mod.rs

@@ -2,9 +2,6 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
-#[cfg(any(target_os = "android", target_env = "ohos"))]
-pub mod gl_glue;
-
 #[cfg(target_os = "android")]
 mod android;