Diagnostics: Remove redundant gzip compress attribute

- This is already the default and was previously removed from
  all components. See [1].

[1] - crbug.com/1068407

Bug: 1125150
Test: None
Change-Id: I486944d6c6a5c0a8ffad04fd5da94a2a3c62fc0e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2401586
Commit-Queue: Zentaro Kavanagh <zentaro@chromium.org>
Reviewed-by: Jimmy Gong <jimmyxgong@chromium.org>
Cr-Commit-Position: refs/heads/master@{#805601}

chromeos/components/diagnostics_ui/resources/diagnostics_app_resources.grd

@@ -13,8 +13,8 @@
   <release seq="1">
     <includes>
       <!-- Privileged app host contents. -->
-      <include name="IDR_DIAGNOSTICS_APP_INDEX_HTML" file="index.html" type="BINDATA" compress="gzip" />
-      <include name="IDR_DIAGNOSTICS_APP_JS" file="${root_gen_dir}/chromeos/components/diagnostics_ui/resources/diagnostics_app.js" use_base_dir="false" compress="gzip" type="BINDATA"/>
+      <include name="IDR_DIAGNOSTICS_APP_INDEX_HTML" file="index.html" type="BINDATA" />
+      <include name="IDR_DIAGNOSTICS_APP_JS" file="${root_gen_dir}/chromeos/components/diagnostics_ui/resources/diagnostics_app.js" use_base_dir="false" type="BINDATA"/>
       <include name="IDR_DIAGNOSTICS_APP_ICON" file="app_icon_192.png" type="BINDATA" />
     </includes>
   </release>