Revert "Add default move constructor/assignment to QPDFObjectHandle"
Revert "Add default move constructor/assignment to QPDFObjectHandle"

This reverts commit 416d9668ee97c54a692d9280364746ce8aeeed43.

This commit causes numerous failures in the pikepdf test suite and
also causes a symbol to disappear from the public API. More
investigation will be required.

jberkenbilt/qpdf,jberkenbilt/qpdf,qpdf/qpdf,qpdf/qpdf,jberkenbilt/qpdf,qpdf/qpdf,jberkenbilt/qpdf,qpdf/qpdf,jberkenbilt/qpdf,qpdf/qpdf