installer: add git.exe to the PATH by default, ignoring previous settings

Most users simply click through the installer and do not benefit from
our previous change that added `cmd/` to the PATH enabled by default,
because during an upgrade the previous setting (which was disabled by
default) would be replayed.

Let's skip replaying the previous setting for a couple of releases so
that users get to benefit from the new default.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

installer/install.iss

@@ -626,7 +626,6 @@ begin
         Height:=ScaleY(17);
         Font.Style:=[fsBold];
         TabOrder:=0;
-        Checked:=True;
     end;
     LblGitBash:=TLabel.Create(PathPage);
     with LblGitBash do begin
@@ -651,6 +650,7 @@ begin
         Height:=ScaleY(17);
         Font.Style:=[fsBold];
         TabOrder:=1;
+        Checked:=True;
     end;
     LblGitCmd:=TLabel.Create(PathPage);
     with LblGitCmd do begin
@@ -700,17 +700,6 @@ begin
         Font.Style:=[fsBold];
     end;
 
-    // Restore the setting chosen during a previous install.
-    Data:=ReplayChoice('Path Option','Cmd');
-
-    if Data='BashOnly' then begin
-        RdbPath[GP_BashOnly].Checked:=True;
-    end else if Data='Cmd' then begin
-        RdbPath[GP_Cmd].Checked:=True;
-    end else if Data='CmdTools' then begin
-        RdbPath[GP_CmdTools].Checked:=True;
-    end;
-
     (*
      * Create a custom page for using (Tortoise)Plink instead of OpenSSH
      * if at least one PuTTY session is found in the Registry.