docs: arm: Remove orphan sh-mobile directory

This directory is empty, except for a .gitignore file, listing an
executable file that can no longer be built since commit
c6535e1e0361157e ("Documentation: Remove ZBOOT MMC/SDHI utility and
docs").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/arm/sh-mobile/.gitignore b/Documentation/arm/sh-mobile/.gitignore
deleted file mode 100644 (file)
index c928dbf..0000000
--- a/Documentation/arm/sh-mobile/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-vrl4