Retire legacy test infrastructure

* Removed zpios kmod, utility, headers and man page.

* Removed unused scripts zpios-profile/*, zpios-test/*,
  zpool-config/*, smb.sh, zpios-sanity.sh, zpios-survey.sh,
  zpios.sh, and zpool-create.sh.

* Removed zfs-script-config.sh.in.  When building 'make' generates
  a common.sh with in-tree path information from the common.sh.in
  template.  This file and sourced by the test scripts and used
  for in-tree testing, it is not included in the packages.  When
  building packages 'make install' uses the same template to
  create a new common.sh which is appropriate for the packaging.

* Removed unused functions/variables from scripts/common.sh.in.
  Only minimal path information and configuration environment
  variables remain.

* Removed unused scripts from scripts/ directory.

* Remaining shell scripts in the scripts directory updated to
  cleanly pass shellcheck and added to checked scripts.

* Renamed tests/test-runner/cmd/ to tests/test-runner/bin/ to
  match install location name.

* Removed last traces of the --enable-debug-dmu-tx configure
  options which was retired some time ago.

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6509

scripts/Makefile.am

@@ -1,17 +1,67 @@
-SUBDIRS = zpool-config zpios-test zpios-profile
-
-EXTRA_DIST = dkms.mkconf dkms.postbuild kmodtool zfs2zol-patch.sed cstyle.pl
-
 pkgdatadir = $(datadir)/@PACKAGE@
+
 dist_pkgdata_SCRIPTS = \
-	$(top_builddir)/scripts/common.sh \
 	$(top_srcdir)/scripts/zimport.sh \
 	$(top_srcdir)/scripts/zfs.sh \
 	$(top_srcdir)/scripts/zfs-tests.sh \
 	$(top_srcdir)/scripts/zloop.sh \
-	$(top_srcdir)/scripts/zpool-create.sh \
-	$(top_srcdir)/scripts/zpios.sh \
-	$(top_srcdir)/scripts/zpios-sanity.sh \
-	$(top_srcdir)/scripts/zpios-survey.sh \
-	$(top_srcdir)/scripts/smb.sh \
 	$(top_srcdir)/scripts/zfs-helpers.sh
+
+EXTRA_DIST = \
+	common.sh.in \
+	commitcheck.sh \
+	dkms.mkconf \
+	dkms.postbuild \
+	kmodtool \
+	paxcheck.sh \
+	zfs2zol-patch.sed \
+	cstyle.pl
+
+define EXTRA_ENVIRONMENT
+
+# Only required for in-tree use
+export INTREE="yes"
+export GDB="/usr/bin/libtool --mode=execute gdb"
+export LDMOD=/sbin/insmod
+
+export CMD_DIR=@abs_top_builddir@/cmd
+export UDEV_RULE_DIR=@abs_top_builddir@/udev/rules.d
+export ZEDLET_ETC_DIR=$$CMD_DIR/zed/zed.d
+export ZEDLET_LIBEXEC_DIR=$$CMD_DIR/zed/zed.d
+export ZPOOL_SCRIPT_DIR=$$CMD_DIR/zpool/zpool.d
+export ZPOOL_SCRIPTS_PATH=$$CMD_DIR/zpool/zpool.d
+
+export INSTALL_UDEV_DIR=@udevdir@
+export INSTALL_UDEV_RULE_DIR=@udevruledir@
+export INSTALL_MOUNT_HELPER_DIR=@mounthelperdir@
+export INSTALL_SYSCONF_DIR=@sysconfdir@
+
+export KMOD_SPL=@SPL_OBJ@/module/spl/spl.ko
+export KMOD_SPLAT=@SPL_OBJ@/module/splat/splat.ko
+export KMOD_ZAVL=@abs_top_builddir@/module/avl/zavl.ko
+export KMOD_ZNVPAIR=@abs_top_builddir@/module/nvpair/znvpair.ko
+export KMOD_ZUNICODE=@abs_top_builddir@/module/unicode/zunicode.ko
+export KMOD_ZCOMMON=@abs_top_builddir@/module/zcommon/zcommon.ko
+export KMOD_ICP=@abs_top_builddir@/module/icp/icp.ko
+export KMOD_ZFS=@abs_top_builddir@/module/zfs/zfs.ko
+endef
+
+export EXTRA_ENVIRONMENT
+
+all-local:
+	-$(SED) -e '\|^export BIN_DIR=|s|$$|@abs_top_builddir@/bin|' \
+		-e '\|^export SBIN_DIR=|s|$$|@abs_top_builddir@/bin|' \
+		-e '\|^export ZTS_DIR=|s|$$|@abs_top_srcdir@/tests|' \
+		-e '\|^export SCRIPT_DIR=|s|$$|@abs_top_srcdir@/scripts|' \
+		common.sh.in >common.sh
+	-echo "$$EXTRA_ENVIRONMENT" >>common.sh
+
+clean-local:
+	-$(RM) common.sh
+
+install-data-hook:
+	-$(SED) -e '\|^export BIN_DIR=|s|$$|@bindir@|' \
+		-e '\|^export SBIN_DIR=|s|$$|@sbindir@|' \
+		-e '\|^export ZTS_DIR=|s|$$|@datadir@/@PACKAGE@|' \
+		-e '\|^export SCRIPT_DIR=|s|$$|@datadir@/@PACKAGE@|' \
+		common.sh.in >$(DESTDIR)$(datadir)/@PACKAGE@/common.sh