Backed out changeset cd0595cee3e0 (bug 1762100) for breaking msi repacks (bug 1762172).

browser/installer/windows/msix/AppxManifest.xml.in

@@ -46,9 +46,8 @@
         </uap3:Extension>
         <uap3:Extension Category="windows.fileTypeAssociation">
           <uap3:FileTypeAssociation Name="htm">
-            <uap:DisplayName>@MOZ_APP_DISPLAYNAME@ HTML Document</uap:DisplayName>
             <uap:SupportedFileTypes>
-              <!-- Keep this (union with the `.pdf` below) synchronized with
+              <!-- Keep synchronized with
                    https://searchfox.org/mozilla-central/source/browser/installer/windows/nsis/shared.nsh
                    and `os.environment.launched_to_handle` and `os.environment.invoked_to_handle` telemetry in
                    https://searchfox.org/mozilla-central/source/browser/components/BrowserContentHandler.jsm. -->
@@ -67,16 +66,6 @@
               <uap3:Verb Id="open" Parameters="-osint -url &quot;%1&quot;">open</uap3:Verb>
             </uap2:SupportedVerbs>
           </uap3:FileTypeAssociation>
-          <uap3:FileTypeAssociation Name="pdf">
-            <uap:DisplayName>@MOZ_APP_DISPLAYNAME@ PDF Document</uap:DisplayName>
-            <uap:SupportedFileTypes>
-              <uap:FileType>.pdf</uap:FileType>
-            </uap:SupportedFileTypes>
-            <uap:Logo>Assets\Document44x44.png</uap:Logo>
-            <uap2:SupportedVerbs>
-              <uap3:Verb Id="open" Parameters="-osint -url &quot;%1&quot;">open</uap3:Verb>
-            </uap2:SupportedVerbs>
-          </uap3:FileTypeAssociation>
         </uap3:Extension>
         <uap3:Extension Category="windows.protocol">
           <uap3:Protocol Name="http" Parameters="-osint -url &quot;%1&quot;">