Remove ex-container

I still think we should do this at some point, but
the experiment with using `GKeyfile` for configuration
is IMO a failure and the variety of data formats
(treefile JSON vs YAML vs origin keyfiles vs container keyfiles)
causes a lot of confusion.

Prep for coreos#2326

Makefile-rpm-ostree.am

@@ -42,7 +42,6 @@ rpm_ostree_SOURCES = src/app/main.c \
 	src/app/rpmostree-builtin-status.c \
 	src/app/rpmostree-builtin-ex.c \
 	src/app/rpmostree-builtin-testutils.c \
-	src/app/rpmostree-builtin-container.c \
 	src/app/rpmostree-builtin-db.c \
 	src/app/rpmostree-builtin-start-daemon.c \
 	src/app/rpmostree-builtin-finalize-deployment.c \
@@ -51,8 +50,6 @@ rpm_ostree_SOURCES = src/app/main.c \
 	src/app/rpmostree-db-builtin-version.c \
 	src/app/rpmostree-dbus-helpers.c \
 	src/app/rpmostree-dbus-helpers.h \
-	src/app/rpmostree-container-builtins.h \
-	src/app/rpmostree-container-builtins.c \
 	src/app/rpmostree-override-builtins.h \
 	src/app/rpmostree-override-builtins.c \
 	src/app/rpmostree-libbuiltin.c \

Makefile-tests.am

@@ -55,7 +55,6 @@ uninstalled_test_programs = \
 
 uninstalled_test_scripts = \
 	tests/check/test-lib-introspection.sh \
-	tests/check/test-ucontainer.sh \
 	$(NULL)
 
 uninstalled_test_extra_programs = \

src/app/rpmostree-builtin-ex.c

@@ -26,8 +26,6 @@ static RpmOstreeCommand ex_subcommands[] = {
   { "livefs", RPM_OSTREE_BUILTIN_FLAG_REQUIRES_ROOT,
     "Apply pending deployment changes to booted deployment",
     rpmostree_ex_builtin_livefs },
-  { "container", RPM_OSTREE_BUILTIN_FLAG_LOCAL_CMD,
-    "Assemble local unprivileged containers", rpmostree_builtin_container },
 #ifdef BUILDOPT_ROJIG
   { "commit2rojig", RPM_OSTREE_BUILTIN_FLAG_LOCAL_CMD,
     "Convert an OSTree commit into an rpm-ostree rojig", rpmostree_ex_builtin_commit2rojig },