Remove no longer applicable .mailmap file contents

Change-Id: I6e48a8419030a1e440e79dd98f2e5eac5b67d6a1
diff --git a/.mailmap b/.mailmap
deleted file mode 100644
index 84de0f3..0000000
--- a/.mailmap
+++ /dev/null
@@ -1 +0,0 @@
-Hector Oswaldo Caballero <hector.caballero@ericsson.com>