add pinning script to expose this function and add below comment

[todo]

fabric-peer-ext/pkg/transientstore/common/common_store_helper.go

Lines 137 to 142 in e68ed45

	// TODO add pinning script to expose this function and add below comment
	func TrimPvtCollectionConfigs(configs map[string]*common.CollectionConfigPackage,
	filter ledger.PvtNsCollFilter) (map[string]*common.CollectionConfigPackage, error) {
	if filter == nil {
	return configs, nil
	}

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This issue was generated by todo based on a TODO comment in e68ed45. It's been assigned to @fqutishat because they committed the code.