MMCTL: Add import delete cmd for removing the import files (#29764)

Co-authored-by: Ben Schumacher <ben.schumacher@mattermost.com>

server/channels/web/params.go

@@ -88,6 +88,7 @@ type Params struct {
 	FilterParentTeamPermitted          bool
 	CategoryId                         string
 	ExportName                         string
+	ImportName                         string
 	ExcludePolicyConstrained           bool
 	GroupSource                        model.GroupSource
 	FilterHasMember                    string
@@ -278,6 +279,7 @@ func ParamsFromRequest(r *http.Request) *Params {
 	params.IncludeTotalCount, _ = strconv.ParseBool(query.Get("include_total_count"))
 	params.IncludeDeleted, _ = strconv.ParseBool(query.Get("include_deleted"))
 	params.ExportName = props["export_name"]
+	params.ImportName = props["import_name"]
 	params.ExcludePolicyConstrained, _ = strconv.ParseBool(query.Get("exclude_policy_constrained"))
 	params.AccessControlPolicyEnforced, _ = strconv.ParseBool(query.Get("access_control_policy_enforced"))
 	params.ExcludeAccessControlPolicyEnforced, _ = strconv.ParseBool(query.Get("exclude_access_control_policy_enforced"))