Remove old cc-frame-viewer now that it is upstreamed into trace_viewer

tools/cc-frame-viewer/third_party/gl-matrix/LICENSE.md

Index: tools/cc-frame-viewer/third_party/gl-matrix/LICENSE.md
diff --git a/tools/cc-frame-viewer/third_party/gl-matrix/LICENSE.md b/tools/cc-frame-viewer/third_party/gl-matrix/LICENSE.md
deleted file mode 100644
index c9cda387534718bfd53a96faab5c0f5f49faa577..0000000000000000000000000000000000000000
--- a/tools/cc-frame-viewer/third_party/gl-matrix/LICENSE.md
+++ /dev/null
@@ -1,19 +0,0 @@
-Copyright (c) 2013 Brandon Jones, Colin MacKenzie IV
-
-This software is provided 'as-is', without any express or implied
-warranty. In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it
-freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
-    claim that you wrote the original software. If you use this software
-    in a product, an acknowledgment in the product documentation would be
-    appreciated but is not required.
-
- 2. Altered source versions must be plainly marked as such, and must not
-    be misrepresented as being the original software.
-
- 3. This notice may not be removed or altered from any source distribution.