Remove the softdep modinfo in the modules mod-softdep-a and mod-softdep-b

Remove the softdep modinfo in the modules mod-softdep-a and mod-softdep-b

Since the soft dependencies are defined in modprobe config, we do not
have to add those info in the modinfo section of the modules.

Co-developed-by: Dan He <dan.h.he@intel.com>
Signed-off-by: Dan He <dan.h.he@intel.com>
Co-developed-by: Gongjun Song <gongjun.song@intel.com>
Signed-off-by: Gongjun Song <gongjun.song@intel.com>
Signed-off-by: Yuchi Chen <yuchi.chen@intel.com>
Signed-off-by: Wenjie Wang <wenjie2.wang@intel.com>
Signed-off-by: Qingqing Li <qingqing.li@intel.com>
Signed-off-by: He Dan <dan.h.he@intel.com>
Link: https://github.com/kmod-project/kmod/pull/311
Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com>