gdb: remove deprecated versions 7.2.x and 7.3.x

Gdb versions 7.2.x and 7.3.x have been deprecated since 2013.02 and thus can
be removed in 2014.02.
For legacy handling, version 7.5.x is automatically selected.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

Config.in.legacy

@@ -119,6 +119,24 @@ config BR2_sh3eb
 	  Due to an inexistent user base and generally poor Linux
 	  support, the support for the SH3eb architecture was removed.
 
+config BR2_GDB_VERSION_7_2
+	bool "gdb 7.2.x is no longer supported"
+	select BR2_GDB_VERSION_7_5
+	select BR2_LEGACY
+	help
+	  Version 7.2.x of gdb has been deprecated for more than four
+	  buildroot releases and is now removed. As an alternative, gdb
+	  7.5.x has been automatically selected in your configuration.
+
+config BR2_GDB_VERSION_7_3
+	bool "gdb 7.3.x is no longer supported"
+	select BR2_GDB_VERSION_7_5
+	select BR2_LEGACY
+	help
+	  Version 7.3.x of gdb has been deprecated for more than four
+	  buildroot releases and is now removed. As an alternative, gdb
+	  7.5.x has been automatically selected in your configuration.
+
 config BR2_PACKAGE_CCACHE
 	bool "ccache target package has been removed"
 	select BR2_LEGACY

package/gdb/Config.in.host

@@ -31,16 +31,6 @@ choice
 		depends on BR2_avr32
 		bool "gdb 6.7.1-avr32-2.1.5"
 
-	config BR2_GDB_VERSION_7_2
-		bool "gdb 7.2.x"
-		depends on !BR2_bfin
-		depends on BR2_DEPRECATED_SINCE_2013_02
-
-	config BR2_GDB_VERSION_7_3
-		bool "gdb 7.3.x"
-		depends on !BR2_bfin
-		depends on BR2_DEPRECATED_SINCE_2013_02
-
 	config BR2_GDB_VERSION_7_4
 		bool "gdb 7.4.x"
 		depends on !BR2_bfin
@@ -61,8 +51,6 @@ config BR2_GDB_VERSION
 	                      (!BR2_PACKAGE_HOST_GDB && BR2_bfin)
 	default "6.7.1-avr32-2.1.5" if BR2_GDB_VERSION_6_7_1_AVR32_2_1_5 || \
                                    (!BR2_PACKAGE_HOST_GDB && BR2_avr32)
-	default "7.2a"     if BR2_GDB_VERSION_7_2
-	default "7.3.1"    if BR2_GDB_VERSION_7_3
 	default "7.4.1"    if BR2_GDB_VERSION_7_4
 	default "7.5.1"    if BR2_GDB_VERSION_7_5 || !BR2_PACKAGE_HOST_GDB
 	default "f25a1952afd054205f9471e449c1f7ca5b271b7c" if BR2_arc