use intree NIC driver for 10G IXGBE drivers

no problems had been reported with it, in contrary to igb and e1000e
so use the newer and better supported in tree driver.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

Makefile

@@ -47,9 +47,6 @@ E1000ESRC=${E1000EDIR}.tar.gz
 IGBDIR=igb-5.3.5.18
 IGBSRC=${IGBDIR}.tar.gz
 
-IXGBEDIR=ixgbe-5.3.7
-IXGBESRC=${IXGBEDIR}.tar.gz
-
 ZFSONLINUX_SUBMODULE=submodules/zfsonlinux
 SPLDIR=pkg-spl
 SPLSRC=${ZFSONLINUX_SUBMODULE}/spl-debian
@@ -57,10 +54,10 @@ ZFSDIR=pkg-zfs
 ZFSSRC=${ZFSONLINUX_SUBMODULE}/zfs-debian
 
 MODULES=modules
-MODULE_DIRS=${E1000EDIR} ${IGBDIR} ${IXGBEDIR} ${SPLDIR} ${ZFSDIR}
+MODULE_DIRS=${E1000EDIR} ${IGBDIR} ${SPLDIR} ${ZFSDIR}
 
 # exported to debian/rules via debian/rules.d/dirs.mk
-DIRS=KERNEL_SRC E1000EDIR IGBDIR IXGBEDIR SPLDIR ZFSDIR MODULES
+DIRS=KERNEL_SRC E1000EDIR IGBDIR SPLDIR ZFSDIR MODULES
 
 DST_DEB=${PACKAGE}_${KERNEL_VER}-${PKGREL}_${ARCH}.deb
 HDR_DEB=${HDRPACKAGE}_${KERNEL_VER}-${PKGREL}_${ARCH}.deb
@@ -134,12 +131,6 @@ ${IGBDIR}.prepared: ${IGBSRC}
 	cd ${BUILD_DIR}/${MODULES}/${IGBDIR}; patch -p1 < ../../../patches/intel/igb/igb_4.15_mtu.patch
 	touch $@
 
-${IXGBEDIR}.prepared: ${IXGBESRC}
-	rm -rf ${BUILD_DIR}/${MODULES}/${IXGBEDIR} $@
-	mkdir -p ${BUILD_DIR}/${MODULES}/${IXGBEDIR}
-	tar --strip-components=1 -C ${BUILD_DIR}/${MODULES}/${IXGBEDIR} -xf ${IXGBESRC}
-	touch $@
-
 $(SPLDIR).prepared: ${SPLSRC}
 	rm -rf ${BUILD_DIR}/${MODULES}/${SPLDIR} $@
 	mkdir -p ${BUILD_DIR}/${MODULES}/${SPLDIR}