vulkan: Move implementor's guide to s.a.c.
Contents have been at
https://source.android.com/devices/graphics/implement-vulkan
for a while now. Removing the one here so we have a canonical source
and don't have to worry about propagating changes from one to the
other.
Test: n/a
Bug: 78347023
Change-Id: I5e65d0aef530a761c75efe999ade8c44bc421a9e
diff --git a/vulkan/doc/README b/vulkan/doc/README
new file mode 100644
index 0000000..d1dc2e1
--- /dev/null
+++ b/vulkan/doc/README
@@ -0,0 +1,2 @@
+The former contents of implementors_guide/ are now at
+https://source.android.com/devices/graphics/implement-vulkan