Remove the "eay" c-file-style indicators

Since we don't use the eay style any more, there's no point tryint to
tell emacs to use it.

Reviewed-by: Matt Caswell <matt@openssl.org>

include/internal/o_str.h

@@ -1,4 +1,4 @@
-/* crypto/o_str.h -*- mode:C; c-file-style: "eay" -*- */
+/* crypto/o_str.h */
 /*
  * Written by Richard Levitte (richard@levitte.org) for the OpenSSL project
  * 2003.