Core5Compat is not necessary now

CMakeLists.txt

@@ -31,9 +31,6 @@ kde_clang_format(${ALL_CLANG_FORMAT_SOURCE_FILES})
 
 
 find_package(Qt${QT_MAJOR_VERSION} ${REQUIRED_QT_VERSION} CONFIG REQUIRED Core DBus Widgets)
-if (QT_MAJOR_VERSION STREQUAL "6")
-    find_package(Qt6Core5Compat)
-endif()
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS I18n CoreAddons Completion XmlGui)
 find_package(KF5DocTools ${KF5_MIN_VERSION})
 set_package_properties(KF5DocTools PROPERTIES DESCRIPTION
@@ -54,9 +51,6 @@ ecm_qt_declare_logging_category(kfloppy HEADER kfloppy_debug.h IDENTIFIER KFLOPP
 
 
 target_link_libraries(kfloppy KF5::CoreAddons KF5::I18n KF5::Completion KF5::XmlGui Qt${QT_MAJOR_VERSION}::DBus KF5::Crash)
-if (TARGET Qt6::Core5Compat)
-    target_link_libraries(kfloppy Qt6::Core5Compat) # QRegExp
-endif()
 
 install(TARGETS kfloppy  ${KDE_INSTALL_TARGETS_DEFAULT_ARGS} )