kernel-headers: remove deprecated versions 3.1, 3.3, 3.5

The Linux kernel headers versions 3.1, 3.3, and 3.5 have been deprecated
since 2013.02 and thus can be removed in 2014.02.
For legacy handling, we automatically select versions 3.2, 3.4, and 3.6,
respectively.

Additionally, this patch removes the now unused symbol
BR2_DEPRECATED_SINCE_2013_02.

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

Config.in

@@ -264,10 +264,6 @@ config BR2_DEPRECATED
 
 if BR2_DEPRECATED
 
-config BR2_DEPRECATED_SINCE_2013_02
-	bool
-	default y
-
 config BR2_DEPRECATED_SINCE_2013_05
 	bool
 	default y

Config.in.legacy

@@ -119,6 +119,36 @@ config BR2_sh3eb
 	  Due to an inexistent user base and generally poor Linux
 	  support, the support for the SH3eb architecture was removed.
 
+config BR2_KERNEL_HEADERS_3_1
+	bool "kernel headers version 3.1.x are no longer supported"
+	select BR2_KERNEL_HEADERS_3_2
+	select BR2_LEGACY
+	help
+	  Version 3.1.x of the Linux kernel headers have been deprecated
+	  for more than four buildroot releases and are now removed.
+	  As an alternative, version 3.2.x of the headers have been
+	  automatically selected in your configuration.
+
+config BR2_KERNEL_HEADERS_3_3
+	bool "kernel headers version 3.3.x are no longer supported"
+	select BR2_KERNEL_HEADERS_3_4
+	select BR2_LEGACY
+	help
+	  Version 3.3.x of the Linux kernel headers have been deprecated
+	  for more than four buildroot releases and are now removed.
+	  As an alternative, version 3.4.x of the headers have been
+	  automatically selected in your configuration.
+
+config BR2_KERNEL_HEADERS_3_5
+	bool "kernel headers version 3.5.x are no longer supported"
+	select BR2_KERNEL_HEADERS_3_6
+	select BR2_LEGACY
+	help
+	  Version 3.5.x of the Linux kernel headers have been deprecated
+	  for more than four buildroot releases and are now removed.
+	  As an alternative, version 3.6.x of the headers have been
+	  automatically selected in your configuration.
+
 config BR2_GDB_VERSION_7_2
 	bool "gdb 7.2.x is no longer supported"
 	select BR2_GDB_VERSION_7_5

package/linux-headers/Config.in.host

@@ -18,26 +18,14 @@ choice
 		bool "Linux 3.0.x kernel headers"
 		depends on !BR2_arc
 
-	config BR2_KERNEL_HEADERS_3_1
-		bool "Linux 3.1.x kernel headers"
-		depends on BR2_DEPRECATED_SINCE_2013_02 && !BR2_arc
-
 	config BR2_KERNEL_HEADERS_3_2
 		bool "Linux 3.2.x kernel headers"
 		depends on !BR2_arc
 
-	config BR2_KERNEL_HEADERS_3_3
-		bool "Linux 3.3.x kernel headers"
-		depends on BR2_DEPRECATED_SINCE_2013_02 && !BR2_arc
-
 	config BR2_KERNEL_HEADERS_3_4
 		bool "Linux 3.4.x kernel headers"
 		depends on !BR2_arc
 
-	config BR2_KERNEL_HEADERS_3_5
-		bool "Linux 3.5.x kernel headers"
-		depends on BR2_DEPRECATED_SINCE_2013_02 && !BR2_arc
-
 	config BR2_KERNEL_HEADERS_3_6
 		bool "Linux 3.6.x kernel headers"
 		depends on BR2_DEPRECATED_SINCE_2013_05 && !BR2_arc
@@ -83,11 +71,8 @@ config BR2_DEFAULT_KERNEL_VERSION
 config BR2_DEFAULT_KERNEL_HEADERS
 	string
 	default "3.0.101"	if BR2_KERNEL_HEADERS_3_0
-	default "3.1.10"	if BR2_KERNEL_HEADERS_3_1
 	default "3.2.54"	if BR2_KERNEL_HEADERS_3_2
-	default "3.3.8"		if BR2_KERNEL_HEADERS_3_3
 	default "3.4.79"	if BR2_KERNEL_HEADERS_3_4
-	default "3.5.7"		if BR2_KERNEL_HEADERS_3_5
 	default "3.6.11"	if BR2_KERNEL_HEADERS_3_6
 	default "3.7.10"	if BR2_KERNEL_HEADERS_3_7
 	default "3.8.13"	if BR2_KERNEL_HEADERS_3_8