delete unused/outdated i3.welcome

i3.welcome

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-1.) Welcome to i3!
-
-This message provides an overview of the default keybindings to use i3.
-Please also make sure to have a look at the man page and the user's guide:
-http://i3wm.org/docs/userguide.html
-
-
-2.) Configuration Files
-
-/etc/i3/config is the default configuration. It is recommended to copy it and
-afterwards edit it to suit your needs (in particular, you may want to disable
-this message):
-
-	cp /etc/i3/config ~/.i3/config
-
-
-3.) Keybindings
-
-The following explanation is related to the QWERTY layout, but as the default
-configuration uses keycodes instead of keysymbols for binding, you still have
-to press the same physical keys, regardless of your keyboard layout.
-
-The Mod1 key is usually bound to the "Alt" key on your keyboard.
-
-Mod1+Enter opens a terminal emulator
-Mod1+v starts dmenu (an application launcher)
-
-The directional keys are j(left), k(down), l(up) and ;(right). You can also use
-the arrow keys on your keyboard, if you prefer them.
-
-Mod1+<directional key> moves the focus to the window in the given direction
-Mod1+Shift+<directional key> moves the window to the given direction
-Mod1+<number> opens the corresponding workspace
-Mod1+Shift+<number> moves a window to the selected workspace
-Mod1+h sets the mode of a container to stacking
-Mod1+e sets the mode back to default
-Mod1+f toggles fullscreen mode for the current window
-Mod1+Shift+Space toggles floating mode for the current window
-Mod1+Shift+q closes a window
-Mod1+Shift+r restarts i3 in-place (at this time, you will lose your layout)
-Mod1+Shift+e exits i3
-
-If you have any questions, please don't hesitate to ask!
-Have fun using i3