No longer needed in the app launcher

We have them in the menus

applications/About.desktop

@@ -1,11 +0,0 @@
-[Desktop Entry]
-Version=1.0
-Name=About
-Comment=System information from Fastfetch
-Exec=alacritty -o "font.size=9" --class=About --title=About -e bash -c 'fastfetch; read -n 1 -s'
-Terminal=false
-Type=Application
-Icon=Arch
-Categories=GTK;
-StartupNotify=false
-

applications/Activity.desktop

@@ -1,11 +0,0 @@
-[Desktop Entry]
-Version=1.0
-Name=Activity
-Comment=System activity from btop
-Exec=alacritty --class=Activity --title=Activity -e btop
-Terminal=false
-Type=Application
-Icon=Activity
-Categories=GTK;
-StartupNotify=false
-