Remove references to snap as it is not supported

README.md

@@ -39,12 +39,6 @@ Fractal Flatpak on Flathub.
 <img src="https://flathub.org/assets/badges/flathub-badge-i-en.png" width="190px" />
 </a>
 
-Fractal can also be installed as a snap on any distro with snap support enabled
-
-<a href="https://snapcraft.io/fractal">
-<img src="https://github.com/snapcore/snap-store-badges/raw/master/EN/[EN]-snap-store-white.png" width="182px" />
-</a>
-
 ## Build Instructions
 
 ### Flatpak
@@ -71,25 +65,10 @@ Then you go ahead and build Fractal.
 flatpak-builder --user --install fractal flatpak/org.gnome.Fractal.json
 ```
 
-### Snap
-
-To build as a snap simply install snapcraft
-
-```
-snap install --classic snapcraft
-snapcraft
-```
-
-The snapcraft build will produce a file that ends with .snap that can be easily installed with the snap command
-
-```
-snap install --dangerous FILENAME.snap
-```
-
 ### GNU/Linux
 
 If you decide to ignore our recommendation and build on your host system,
-outside of Flatpak or snap, you will need Meson and Ninja (as well as Rust and Cargo).
+outside of Flatpak, you will need Meson and Ninja (as well as Rust and Cargo).
 
 ```sh
 meson . _build --prefix=/usr/local