finish removing deprecated/obsolete commands

It's been about a year since these were deprecated and, in most
cases, removed.  There's no point in carrying that documentation,
or backwards compatibility for "jtag_device" and "jtag_speed",
around forever.  (Or a few remnants of obsolete code...)

Removed a few obsolete uses of "jtag_speed":

 - The Calao stuff hasn't worked since July 2008.  (Those Atmel
   targets need to work with a 32KHz core clock after reset until
   board-specific init-reset code sets up the PLL and enables a
   faster JTAg clock.)
 - Parport speed controls don't actually work (tops out at about
   1 MHz on typical HW).
 - In general, speed controls need to live in board.cfg files (or
   sometimes target.cfg files), not interface.cfg ...

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

src/target/arm7_9_common.c

@@ -38,7 +38,6 @@
 
 
 int arm7_9_debug_entry(target_t *target);
-int arm7_9_enable_sw_bkpts(struct target_s *target);
 
 /* command handler forward declarations */
 int handle_arm7_9_write_xpsr_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);

src/target/arm7_9_common.h

@@ -47,7 +47,6 @@ typedef struct arm7_9_common_s
 
 	uint32_t arm_bkpt; /**< ARM breakpoint instruction */
 	uint16_t thumb_bkpt; /**< Thumb breakpoint instruction */
-	bool force_hw_bkpts;
 
 	int sw_breakpoints_added; /**< Specifies which watchpoint software breakpoints are setup on */
 	int sw_breakpoint_count; /**< keep track of number of software breakpoints we have set */

src/target/target.c

@@ -1282,10 +1282,10 @@ void target_free_all_working_areas(struct target_s *target)
 int target_register_commands(struct command_context_s *cmd_ctx)
 {
 
-	register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, "change the current command line target (one parameter) or lists targets (with no parameter)");
-
-
-
+	register_command(cmd_ctx, NULL, "targets",
+			handle_targets_command, COMMAND_EXEC,
+			"change current command line target (one parameter) "
+			"or list targets (no parameters)");
 
 	register_jim(cmd_ctx, "target", jim_target, "configure target");