docs: Remove trailing whitespaces

docs: Remove trailing whitespaces

Wrong whitespace characters breaks automatic generation of VSPERF
documentation. It is necessary to remove wrong characters before
merge of the draft into VSPERF doc, e.g. by filtering through
tr -d '\014'

JIRA: VSPERF-324

Change-Id: Ie280f5a443c89d4235cae5eb89fdceae74ea4213
Signed-off-by: Martin Klozik <martinx.klozik@intel.com>
Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com>
Reviewed-by: Al Morton <acmorton@att.com>
Reviewed-by: Christian Trautman <ctrautma@redhat.com>
Reviewed-by: <bmichalo@redhat.com>