Enable modernize-use-equals-delete

Not claiming copyright since the change is mechanical
10 jobs for master in 11 minutes and 10 seconds (queued for 46 seconds)
Status Job ID Name Coverage
  Build
passed build #1049406

00:03:24

passed build_android #1049411

00:04:10

passed build_clang_libcpp #1049407

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passed build_clazy #1049410

00:01:53

passed build_mingw64_fedora #1049409

00:04:01

passed build_ubuntu_16_04 #1049408

00:01:12

 
  Document
passed cpp_docs #1049413

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passed glib_docs #1049414

00:03:27

passed qt5_docs #1049412

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  Publish
passed trigger_pages #1049415

00:00:18