m4/tar: Remove remove-gets.patch

When the original problem was fixed in gnulib the
patches were rebased on top of the upstream fix...

(From OE-Core rev: d93ad85d94ea99e3fad7e4c2f6be999088e2f9f9)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/m4/m4/remove-gets.patch

@@ -1,24 +0,0 @@
-eglibc has remove gets starting 2.16
-therefore check for its being there before 
-undefining it.
-
-Upstream-Status: Pending
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
-diff --git a/lib/stdio.in.h b/lib/stdio.in.h
-index 5727452..f04a691 100644
---- a/lib/stdio.in.h
-+++ b/lib/stdio.in.h
-@@ -742,10 +742,12 @@ _GL_WARN_ON_USE (getline, "getline is unportable - "
- /* It is very rare that the developer ever has full control of stdin,
-    so any use of gets warrants an unconditional warning; besides, C11
-    removed it.  */
-+#if defined gets
- #undef gets
- #if HAVE_RAW_DECL_GETS && !defined __cplusplus
- _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
- #endif
-+#endif
- 
- #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
- struct obstack;