Remove qtgraphicaleffects sources and add note about its state in Qt 6HEADdev

Add a README.md mentioning the documentation on where the ported
effects can be found, as well as how to check out the Qt5 branch.

Pick-to: 6.2
Fixes: QTBUG-95757
Change-Id: Ib47c7e73f8622c8e287df0f74c6f16a5113b357e
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 0 insertions, 84 deletions

diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index a1847a2..0000000
--- a/.gitignore
+++ /dev/null
@@ -1,84 +0,0 @@
-# This file is used to ignore files which are generated in the Qt build system
-# ----------------------------------------------------------------------------
-
-*.so
-*.so.*
-*.app
-*.exe
-*.dll
-*.dylib
-*.lib
-*.exp
-*.a
-*.la
-*.core
-*.moc
-*.o
-*.obj
-*.orig
-*.swp
-*.rej
-*.so
-*.pbxuser
-*.mode1
-*.mode1v3
-*_pch.h.cpp
-*_resource.rc
-*~
-.#*
-*.*#
-.qmake.stash
-.qmake.cache
-.qmake.vars
-*.prl
-tags
-.DS_Store
-*.debug
-Makefile*
-*.Debug
-*.Release
-*.prl
-*.pro.user
-*.qmlproject.user*
-moc_*.cpp
-ui_*.h
-qrc_*.cpp
-callgrind.out.*
-pcviewer.cfg
-*.flc
-.*.swp
-*.ib_pdb_index
-*.idb
-*.ilk
-*.pdb
-*.sln
-*.suo
-*.vcproj
-*vcproj.*.*.user
-*.ncb
-.pch
-.rcc
-.project
-.cproject
-.make.cache
-android-build
-app_process
-qtc-debugging-helper
-android-*.so-deployment-settings.json
-*.directory
-*_plugin_import.cpp
-*_wrapper.sh
-*_wrapper.bat
-*.mak
-*.xib
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-*.pbxproj
-*_plugin_import.cpp
-*.xcsettings
-*.xcscheme
-*.xcodeproj
-qt.conf
-*.version
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-*.qmlc
-codeattributions.qdoc