Adapt gitignore for modules

Remove the specific gitignore rules for module left-overs and add a
generic one in modules/.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl>
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Closes #9656

.gitignore

@@ -63,15 +63,3 @@ cscope.*
 *.orig
 *.log
 venv
-
-#
-# Module leftovers
-#
-/module/avl/zavl.mod
-/module/icp/icp.mod
-/module/lua/zlua.mod
-/module/nvpair/znvpair.mod
-/module/spl/spl.mod
-/module/unicode/zunicode.mod
-/module/zcommon/zcommon.mod
-/module/zfs/zfs.mod

module/.gitignore

@@ -5,6 +5,7 @@
 *.dwo
 .*.cmd
 .*.d
+*.mod
 
 /.cache.mk
 /.tmp_versions