Revert "Don't grab devices unless specified through the config options."

Not such a good idea, CTRL+C terminates the server and other issues. Reverting
for now until a better solution is found, at least this way the driver is
usable.

See also: http://lists.freedesktop.org/archives/xorg/2008-August/038032.html

This reverts commit e8534d47c8.

man/evdev.man

@@ -12,7 +12,6 @@ evdev \- Generic Linux input driver
 .BI "  Option \*qPath\*q     \*q" path \*q
 .BI "  Option \*qEmulate3Buttons\*q     \*q" True \*q
 .BI "  Option \*qEmulate3Timeout\*q     \*q" 50 \*q
-.BI "  Option \*qGrabDevice\*q     \*q" False \*q
 \ \ ...
 .B EndSection
 .fi
@@ -121,13 +120,6 @@ emulation mode.  Button number
 is mapped to the negative Y axis motion and button number
 .I N2
 is mapped to the positive Y axis motion.  Default: "4 5"
-.TP 7
-.BI "Option \*qGrabDevice\*q \*q" boolean \*q
-Force a grab on the event device. Doing so will ensure that no other driver
-can initialise the same device and it will also stop the device from sending
-events to /dev/kbd or /dev/input/mice. Events from this device will not be
-sent to virtual devices (e.g. rfkill or the Macintosh mouse button emulation).
-Default disabled.
 .SH AUTHORS
 Kristian Høgsberg.
 .SH "SEE ALSO"