Revert "handle ubx double click on windows"

This reverts commit 410d0ff1.

release_scripts/windows/OpenBoard.iss

@@ -12,9 +12,7 @@ AppId={{8CCA6AC7-BBF9-4DD2-8E70-A907E0FCA38F}}
 AppName=OpenBoard
 AppVersion={#ApplicationVersion}
 AppVerName=OpenBoard {#ApplicationVersion}
-UninstallDisplayName=OpenBoard
-
-
+UninstallDisplayName=OpenBoard {#ApplicationVersion}
 AppPublisher=Open Education Foundation
 
 AppPublisherURL=http://www.oe-f.org
@@ -145,11 +143,6 @@ Root: HKCR; Subkey: "OpenBoardFile"; ValueType: string; ValueName: ""; ValueData
 Root: HKCR; Subkey: "OpenBoardFile\DefaultIcon"; ValueType: string; ValueName: ""; ValueData: "{app}\OpenBoard.exe,1"
 Root: HKCR; Subkey: "OpenBoardFile\shell\open\command"; ValueType: string; ValueName: ""; ValueData: """{app}\OpenBoard.exe"" ""%1"""
 
-Root: HKCR; Subkey: ".ubx"; ValueType: string; ValueName: ""; ValueData: "OpenBoardFileSet"; Flags: uninsdeletevalue
-Root: HKCR; Subkey: "OpenBoardFileSet"; ValueType: string; ValueName: ""; ValueData: "OpenBoard document set"; Flags: uninsdeletekey
-Root: HKCR; Subkey: "OpenBoardFileSet\DefaultIcon"; ValueType: string; ValueName: ""; ValueData: "{app}\OpenBoard.exe,1"
-Root: HKCR; Subkey: "OpenBoardFileSet\shell\open\command"; ValueType: string; ValueName: ""; ValueData: """{app}\OpenBoard.exe"" ""%1"""
-
 Root: HKLM; Subkey: "SOFTWARE\OpenBoard"; ValueType: string; ValueName: "Client application"; ValueData: "{app}\OpenBoard.exe"; Flags: uninsdeletevalue; Check: isProcessorNotX64
 Root: HKLM; Subkey: "SOFTWARE\OpenBoard"; ValueType: dword; ValueName: "Transfer mode"; ValueData: "0"; Flags: uninsdeletevalue; Check: isProcessorNotX64
 Root: HKLM; Subkey: "SOFTWARE\OpenBoard"; ValueType: dword; ValueName: "EMF: Hide page"; ValueData: "1"; Flags: uninsdeletevalue; Check: isProcessorNotX64