Revert "Use scap library to implement screensharing on X11 (#27807)" (#28141)

This reverts commit c2afc2271b.

Build on ARM if failing, likely because `c_char` is `u8` on arm and `i8`
on x86:

```
error[E0308]: mismatched types
   --> /home/runner/.cargo/git/checkouts/scap-40ad33e1dd47aaea/5715067/src/targets/linux/mod.rs:75:74
    |
75  |     let result = unsafe { XmbTextPropertyToTextList(display, &mut xname, &mut list, &mut count) };
    |                           -------------------------                      ^^^^^^^^^ expected `*mut *mut *mut u8`, found `&mut *mut *mut i8`
    |                           |
    |                           arguments to this function are incorrect
    |
    = note:    expected raw pointer `*mut *mut *mut u8`
            found mutable reference `&mut *mut *mut i8`
note: function defined here
   --> /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/x11-2.21.0/src/xlib.rs:552:10
    |
552 |   pub fn XmbTextPropertyToTextList (_4: *mut Display, _3: *const XTextProperty, _2: *mut *mut *mut c_char, _1: *mut c_int) -> c_int,
    |          ^^^^^^^^^^^^^^^^^^^^^^^^^
```

Release Notes:

- N/A

script/linux

@@ -28,7 +28,6 @@ if [[ -n $apt ]]; then
     libasound2-dev
     libfontconfig-dev
     libwayland-dev
-    libx11-xcb-dev
     libxkbcommon-x11-dev
     libssl-dev
     libzstd-dev
@@ -77,7 +76,6 @@ if [[ -n $dnf ]] || [[ -n $yum ]]; then
     alsa-lib-devel
     fontconfig-devel
     wayland-devel
-    libxcb-devel
     libxkbcommon-x11-devel
     openssl-devel
     libzstd-devel
@@ -146,7 +144,6 @@ if [[ -n $zyp ]]; then
     gzip
     jq
     libvulkan1
-    libxcb-devel
     libxkbcommon-devel
     libxkbcommon-x11-devel
     libzstd-devel
@@ -177,7 +174,6 @@ if [[ -n $pacman ]]; then
     fontconfig
     wayland
     libgit2
-    libxcb
     libxkbcommon-x11
     openbsd-netcat
     openssl