jim tests: use installed

Delete obsolete jim that comes with OpenOCD.

src/helper/command.h

@@ -29,12 +29,11 @@
 #if BUILD_ECOSBOARD
 #include <stdio.h>
 #include <stdarg.h>
-/* Jim is provied by eCos */
-#include <cyg/jimtcl/jim.h>
-#else
-#include <helper/jim.h>
 #endif
 
+#include <jim.h>
+#include <jim-nvp.h>
+
 /* To achieve C99 printf compatibility in MinGW, gnu_printf should be
  * used for __attribute__((format( ... ))), with GCC v4.4 or later
  */