3rdparty: Removed sbcelt submodule as it is not used and broken

.gitmodules

@@ -7,9 +7,6 @@
 [submodule "opus-src"]
 	path = 3rdparty/opus-src
 	url = https://github.com/mumble-voip/opus.git
-[submodule "sbcelt-src"]
-	path = 3rdparty/sbcelt-src
-	url = https://github.com/mumble-voip/sbcelt.git
 [submodule "3rdparty/minhook-src"]
 	path = 3rdparty/minhook-src
 	url = https://github.com/mumble-voip/minhook.git

3rdparty/sbcelt-helper-build/sbcelt-helper-build.pro

@@ -1,74 +0,0 @@
-include(../../qmake/compiler.pri)
-
-BUILDDIR=$$basename(PWD)
-SOURCEDIR=$$replace(BUILDDIR,-helper-build,-src)
-CELTDIR=../celt-0.7.0-src/libcelt
-
-!exists($$CELTDIR/../COPYING) {
-        message("The $$CELTDIR/ directory was not found. Please update your submodules (git submodule update --init).")
-        error("Aborting configuration")
-}
-
-!exists(../$$SOURCEDIR/LICENSE) {
-        message("The $$SOURCEDIR/ directory was not found. You need to do the following:")
-        message("")
-        message("Use SBCELT Git:")
-        message("git submodule init")
-        message("git submodule update")
-        message("")
-        error("Aborting configuration")
-}
-
-TEMPLATE = app
-CONFIG -= qt app_bundle
-CONFIG *= debug_and_release
-CONFIG -= warn-on
-VPATH   = ../$$SOURCEDIR/helper
-TARGET = sbcelt-helper
-DEFINES += HAVE_CONFIG_H
-INCLUDEPATH += ../$$SOURCEDIR/helper ../$$SOURCEDIR/lib ../$$SOURCEDIR $$CELTDIR
-LIBS += -lpthread
-
-SOURCES = \
-        $$CELTDIR/bands.c \
-        $$CELTDIR/celt.c \
-        $$CELTDIR/cwrs.c \
-        $$CELTDIR/entcode.c \
-        $$CELTDIR/entdec.c \
-        $$CELTDIR/entenc.c \
-        $$CELTDIR/header.c \
-        $$CELTDIR/kiss_fft.c \
-        $$CELTDIR/kiss_fftr.c \
-        $$CELTDIR/laplace.c \
-        $$CELTDIR/mdct.c \
-        $$CELTDIR/modes.c \
-        $$CELTDIR/pitch.c \
-        $$CELTDIR/psy.c \
-        $$CELTDIR/quant_bands.c \
-        $$CELTDIR/rangedec.c \
-        $$CELTDIR/rangeenc.c \
-        $$CELTDIR/rate.c \
-        $$CELTDIR/vq.c \
-        sbcelt-helper.c \
-        alloc.c
-
-unix:!macx {
-  UNAME=$$system(uname -s)
-  contains(UNAME, Linux) {
-    SOURCES *= ../lib/futex-linux.c seccomp-sandbox.c sbcelt-sandbox-linux.c pdeath-linux.c
-    LIBS += -lrt
-  }
-  contains(UNAME, FreeBSD) {
-    SOURCES *= ../lib/futex-freebsd.c sbcelt-sandbox-freebsd.c pdeath-kqueue.c
-  }
-}
-
-macx {
-  SOURCES *= ../lib/futex-stub.c sbcelt-sandbox-darwin.c pdeath-kqueue.c
-}
-
-CONFIG(debug, debug|release) {
-  DEFINES *= USE_LOGFILE
-}
-
-include(../../qmake/symbols.pri)

3rdparty/sbcelt-lib-build/sbcelt-lib-build.pro

@@ -1,55 +0,0 @@
-include(../../qmake/compiler.pri)
-
-BUILDDIR=$$basename(PWD)
-SOURCEDIR=$$replace(BUILDDIR,-lib-build,-src)
-CELTDIR=../celt-0.7.0-src
-
-!exists($$CELTDIR/COPYING) {
-        message("The $$CELTDIR/ directory was not found. Please update your submodules (git submodule update --init).")
-        error("Aborting configuration")
-}
-
-!exists(../$$SOURCEDIR/LICENSE) {
-  message("The $$SOURCEDIR/ directory was not found. You need to do the following:")
-  message("")
-  message("Use SBCELT Git:")
-  message("git submodule init")
-  message("git submodule update")
-  message("")
-  error("Aborting configuration")
-}
-
-TEMPLATE = lib
-CONFIG -= qt
-CONFIG += debug_and_release
-CONFIG -= warn_on
-CONFIG += warn_off
-CONFIG += static
-VPATH = ../$$SOURCEDIR/lib
-TARGET = sbcelt
-INCLUDEPATH = $$CELTDIR/libcelt
-DEFINES += SBCELT_PREFIX_API
-
-QMAKE_CFLAGS -= -fPIE -pie
-
-unix {
-  INCLUDEPATH += ../$$BUILDDIR
-}
-
-SOURCES *= libsbcelt.c mtime.c stub.c
-
-unix:!macx {
-  UNAME=$$system(uname -s)
-  contains(UNAME, Linux) {
-    SOURCES *= futex-linux.c closefrom.c
-  }
-  contains(UNAME, FreeBSD) {
-    SOURCES *= futex-freebsd.c closefrom-sys.c
-  }
-}
-
-macx {
-  SOURCES *= futex-stub.c closefrom.c
-}
-
-include(../../qmake/symbols.pri)

3rdparty/sbcelt-src

@@ -1 +0,0 @@
-Subproject commit 045493d60b269ddb0096121552fd4d912704d4bf