Remove tokenize.gperf

This file isn't used since 6bb646861c, but
apparently I forgot to actually remove it. Whoops.

Signed-off-by: Uli Schlachter <psychon@znc.in>

common/tokenize.gperf

@@ -1,106 +0,0 @@
-above
-align
-alpha
-Any
-below
-bg
-bg_align
-bg_image
-bg_resize
-border_color
-border_width
-bottom
-button
-button_press
-button_release
-center
-char
-class
-conffile
-content
-Control
-Ctrl
-cursor
-east
-ellipsize
-end
-fg
-focus
-focusable
-font
-font_height
-fullscreen
-geometry
-group_window
-height
-hidden
-icon
-icon_name
-image
-imagebox
-index
-instance
-key
-key_press
-key_release
-keysym
-leader_window
-left
-len
-Lock
-machine
-margin
-maximized_horizontal
-maximized_vertical
-middle
-minimized
-Mod1
-Mod2
-Mod3
-Mod4
-Mod5
-modal
-modifiers
-motion_notify
-name
-ontop
-opacity
-orientation
-outputs
-pid
-release
-resize
-right
-role
-screen
-selected
-session
-Shift
-size_hints
-size_hints_honor
-skip_taskbar
-south
-start
-started
-sticky
-system
-systray
-text
-textbox
-timeout
-top
-transient_for
-type
-urgent
-valign
-version
-visible
-widgets
-width
-window
-word
-word_char
-workarea
-wrap
-x
-y