fix built exes to refer to their pdbs relatively, so that relocated builds can still locate pdbs relatively; eliminate old unused targets; simplify project.4coder

src/df/gfx/df_gfx.c

@@ -13589,7 +13589,7 @@ df_gfx_begin_frame(Arena *arena, DF_CmdList *cmds)
         
         //- rjf: exiting
         case DF_CoreCmdKind_Exit:
-        {
+        {
           // rjf: save
           {
             DF_CmdParams params = df_cmd_params_zero();