[filesapp] Remove open-in-new icon from the "files" iconset

Not used in files app (was added for use in QuickView but is not used
in its markup anymore).

Bug: 1002393
Change-Id: I1e386344b9318f7c0df31c76e2cd48818ca90c84
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1925837
Commit-Queue: Noel Gordon <noel@chromium.org>
Reviewed-by: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#716984}

ui/file_manager/file_manager/foreground/elements/icons.html

@@ -21,7 +21,6 @@
       <g id="cloud-off"><path d="M19.35 10.04C18.67 6.59 15.64 4 12 4c-1.48 0-2.85.43-4.01 1.17l1.46 1.46C10.21 6.23 11.08 6 12 6c3.04 0 5.5 2.46 5.5 5.5v.5H19c1.66 0 3 1.34 3 3 0 1.13-.64 2.11-1.56 2.62l1.45 1.45C23.16 18.16 24 16.68 24 15c0-2.64-2.05-4.78-4.65-4.96zM3 5.27l2.75 2.74C2.56 8.15 0 10.77 0 14c0 3.31 2.69 6 6 6h11.73l2 2L21 20.73 4.27 4 3 5.27zM7.73 10l8 8H6c-2.21 0-4-1.79-4-4s1.79-4 4-4h1.73z"/></g>
       <g id="cloud-queue"><path d="M19.35 10.04C18.67 6.59 15.64 4 12 4 9.11 4 6.6 5.64 5.35 8.04 2.34 8.36 0 10.91 0 14c0 3.31 2.69 6 6 6h13c2.76 0 5-2.24 5-5 0-2.64-2.05-4.78-4.65-4.96zM19 18H6c-2.21 0-4-1.79-4-4s1.79-4 4-4h.71C7.37 7.69 9.48 6 12 6c3.04 0 5.5 2.46 5.5 5.5v.5H19c1.66 0 3 1.34 3 3s-1.34 3-3 3z"/></g>
       <g id="cloud-upload"><path d="M19.35 10.04C18.67 6.59 15.64 4 12 4 9.11 4 6.6 5.64 5.35 8.04 2.34 8.36 0 10.91 0 14c0 3.31 2.69 6 6 6h13c2.76 0 5-2.24 5-5 0-2.64-2.05-4.78-4.65-4.96zM14 13v4h-4v-4H7l5-5 5 5h-3z"/></g>
-      <g id="open-in-new"><path d="M19 19H5V5h7V3H5c-1.11 0-2 .9-2 2v14c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2v-7h-2v7zM14 3v2h3.59l-9.83 9.83 1.41 1.41L19 6.41V10h2V3h-7z"/></g>
       <g id="photo"><path d="M21 19V5c0-1.1-.9-2-2-2H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2zM8.5 13.5l2.5 3.01L14.5 12l4.5 6H5l3.5-4.5z"/></g>
     </defs>
   </svg>