ruby: remove CVE-2018-1000073.patch as already fixed

rubygems 2.7.6 which is in ruby 2.5.3 has this fix and as currently
applied all gem extraction fails as the realpath check is done against
the full path including the file to be extracted which will always fail
as the file hasnt been extracted yet

(From OE-Core rev: a9cc1b3f9a684c14f02b06226693b023adc3e609)

Signed-off-by: Brett Grandbois <brett.grandbois@opengear.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/ruby/ruby/CVE-2018-1000073.patch

@@ -1,34 +0,0 @@
-From 1b931fc03b819b9a0214be3eaca844ef534175e2 Mon Sep 17 00:00:00 2001
-From: Jonathan Claudius <jclaudius@mozilla.com>
-Date: Wed, 7 Feb 2018 23:54:52 -0500
-Subject: [PATCH] Non-working patch for deducing symlinked base-dirs
-
----
-CVE: CVE-2018-1000073
-
-Fixed in ruby 2.7.6.
-
-Upstream-Status: Backport [github.com/rubygems/rubygems/commit/1b931fc...]
-
-Signed-off-by: Joe Slater <joe.slater@windriver.com>
-
----
- lib/rubygems/package.rb |    2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/lib/rubygems/package.rb b/lib/rubygems/package.rb
-index dede959..cb9c74a 100644
---- a/lib/rubygems/package.rb
-+++ b/lib/rubygems/package.rb
-@@ -421,6 +421,8 @@ EOM
-     destination_dir = File.expand_path destination_dir
- 
-     destination = File.join destination_dir, filename
-+    destination = File.realpath destination if
-+      File.respond_to? :realpath
-     destination = File.expand_path destination
- 
-     raise Gem::Package::PathError.new(destination, destination_dir) unless
--- 
-1.7.9.5
-

meta/recipes-devtools/ruby/ruby_2.5.3.bb

@@ -3,7 +3,6 @@ require ruby.inc
 SRC_URI += " \
            file://ruby-CVE-2017-9226.patch \
            file://ruby-CVE-2017-9228.patch \
-           file://CVE-2018-1000073.patch \
            "
 
 SRC_URI[md5sum] = "20c85b67846d49622ef3b24230803fef"