rhevh6-posts: removing non applying patch

mkdumprd patch from 2011 which don't apply on current mkdumprd
source code. mkdumprd seems to be dynamic enough at moment.

Change-Id: I41874c07b69674ab2e38ba3a8270213be70efb91
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>