ARM: drop unsupported 'trab' board

The 'trab' board configuration is broken, and there is nobody who is
interested and willing to fix it.  Drop it.

This includes support for VFD displays which have always been used by
this board only.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/tools/env/README b/tools/env/README
index d5f228f..3f0d77e 100644
--- a/tools/env/README
+++ b/tools/env/README
@@ -34,9 +34,6 @@
 #define DEVICE2_ESIZE     0x4000
 #define DEVICE2_ENVSECTORS     2
 
-Current configuration matches the environment layout of the TRAB
-board.
-
 Un-define HAVE_REDUND, if you want to use the utlities on a system
 that does not have support for redundant environment enabled.
 If HAVE_REDUND is undefined, DEVICE2_NAME is ignored,
diff --git a/tools/env/fw_env.h b/tools/env/fw_env.h
index c83d608..9258c79 100644
--- a/tools/env/fw_env.h
+++ b/tools/env/fw_env.h
@@ -24,7 +24,7 @@
 /*
  * To build the utility with the run-time configuration
  * uncomment the next line.
- * See included "fw_env.config" sample file (TRAB board)
+ * See included "fw_env.config" sample file
  * for notes on configuration.
  */
 #define CONFIG_FILE     "/etc/fw_env.config"