remove 9999999-with-vs2019.patch

mozilla-central/patches/9999999-with-vs2019.patch

@@ -1,28 +0,0 @@
-# HG changeset patch
-# User Bill Gianopoulos <wgianopoulos@gmail.com>
-# Date 1619006020 14400
-#      Wed Apr 21 07:53:40 2021 -0400
-Bug 9999999 - permit --with-visual-studio-version=2019.
-
-diff --git a/build/moz.configure/toolchain.configure b/build/moz.configure/toolchain.configure
---- a/build/moz.configure/toolchain.configure
-+++ b/build/moz.configure/toolchain.configure
-@@ -527,17 +527,17 @@ def get_vc_paths(topsrcdir):
-         )
-         tools_path = os.path.join(path, r"VC\Tools\MSVC", tools_version)
-         yield (Version(install["installationVersion"]), tools_path)
- 
- 
- option(
-     "--with-visual-studio-version",
-     nargs=1,
--    choices=("2017",),
-+    choices=("2017", "2019",),
-     when=host_is_windows,
-     help="Select a specific Visual Studio version to use",
- )
- 
- 
- @depends_if("--with-visual-studio-version", when=host_is_windows)
- def vs_version(value):
-     return value[0]