[deployment] Removed setting of ECAL_DATA environment variable in inn…

…o setup (#1451)

cpack/innosetup/ecal_setup.iss.in

@@ -141,7 +141,6 @@ Name: "{commondesktop}\eCAL Launcher"; Filename: "{app}\bin\ecal_
 ; Root key HKA is only available in Version 6 and above
 ; In Case of Non-Admin install mode, HKA will be resolved to HKCU, otherwise HKLM - see https://jrsoftware.org/ishelp/index.php?topic=setup_privilegesrequiredoverridesallowed
 Root: HKA; Subkey: {code:GetEnvironmentSubkey}; ValueType: string; ValueName: "ECAL_HOME"; ValueData: "{app}"; Flags: uninsdeletevalue; Components: applications
-Root: HKA; Subkey: {code:GetEnvironmentSubkey}; ValueType: string; ValueName: "ECAL_DATA"; ValueData: "{commonappdata}\eCAL"; Flags: uninsdeletevalue; Components: applications
 
 Root: HKA; Subkey: "SOFTWARE\Classes\.ecalrec"; ValueType: string; ValueName: ""; ValueData: "ecal_rec_gui"; Flags: uninsdeletevalue; Components: applications
 Root: HKA; Subkey: "SOFTWARE\Classes\ecal_rec_gui"; ValueType: string; ValueName: ""; ValueData: "eCAL Recorder Configuration"; Flags: uninsdeletekey; Components: applications