Remove unused file

3rdparty/qtiocompressor/qtiocompressor.pri

@@ -1,20 +0,0 @@
-include(../common.pri)
-INCLUDEPATH += $$PWD
-DEPENDPATH += $$PWD
-
-# We need to find zlib.h. If it's not in the system includes, this will
-# find the one includes with Qt, assuming a developer-style "in-place" install.
-# Otherwise, edit this to point at the directory where zlib.h resides.
-INCLUDEPATH += $$[QT_INSTALL_PREFIX]/src/3rdparty/zlib
-
-qtiocompressor-uselib:!qtiocompressor-buildlib {
-    LIBS += -L$$QTIOCOMPRESSOR_LIBDIR -l$$QTIOCOMPRESSOR_LIBNAME
-} else {
-    SOURCES += $$PWD/qtiocompressor.cpp
-    HEADERS += $$PWD/qtiocompressor.h
-}
-
-win32 {
-    contains(TEMPLATE, lib):contains(CONFIG, shared):DEFINES += QT_QTIOCOMPRESSOR_EXPORT
-    else:qtiocompressor-uselib:DEFINES += QT_QTIOCOMPRESSOR_IMPORT
-}