* Drop patches that were submitted to or backports from upstream, now 
  in 5.3.0:
  - correct_geometry_for_2x_pixmaps.patch
  - fix_qtbug_32004.patch
  - qtquick_delegate_creation_range_itemviews.patch
  - Do-not-crash-if-proc-is-not-mounted.patch
  - Make-sure-the-test-window-has-focus.patch
  - V4-Array.push-on-QStringList-should-invoke-putIndexe.patch
  - Guarantee-event-s-default-state-as-not-accepted.patch
  - Fix-crash-when-accessing-var-properties-in-objects-w.patch
  - clean_chain_of_incubated_objects.patch
  - Fix-crash-when-appending-arrays-to-sub-models-in-lis.patch
  - Don-t-crash-on-Runtime-getQmlImportedScripts.patch
  - Fix-global-object-handling-in-worker-script-JS-files.patch
  - V4-JIT-save-restore-ebx-GOT-ptr-on-linux-x86.patch
  - V4-fix-range-sorting.patch
  - V4-regalloc-fix-interval-splitting-when-register-pre.patch
  - 0001-Call-tzset-from-getLocalTZA-so-we-learn-about-tz-cha.patch
  - Support-RFC2822Date-date-format-similar-to-V8.patch
  - Fix-marking-of-prototype-objects-in-chain.patch
  - QQuickItemView-QQuickPathView-Fix-creation-of-delega.patch
  - Implement-proper-support-for-layoutChange-in-QQmlDel.patch
  - V4-regalloc-fix-register-spill-choice-under-high-pre.patch
* Drop patch that is unneeded and resolved upstream in a different way:
  - Fix_QSmoothedAnimation_sometimes_getting_stuck.patch
* Update symbols files