OSV-2020-513 Use-of-uninitialized-value in icalcomponent_remove_component

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14738 Crash type: Use-of-uninitialized-value Crash state: icalcomponentremovecomponent icalcomponentfree icalparserfree...