git-mailrc: remove invalid entry 'efi'

Remove alias 'efi' with invalid data.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/git-mailrc b/doc/git-mailrc
index b00c278..96623c3 100644
--- a/doc/git-mailrc
+++ b/doc/git-mailrc
@@ -111,7 +111,6 @@
 alias dm             uboot, sjg
 alias cfi            uboot, stroese
 alias dfu            uboot, lukma
-alias efi            uboot, agraf
 alias eth            uboot, jhersh
 alias kerneldoc      uboot, marex
 alias fdt            uboot, sjg