kernel, libroot: Add more memory info in system_info

system_info now contains all information previously available only
through __get_system_info_etc(B_MEMORY_INFO, ...).

headers/private/system/syscalls.h

@@ -521,8 +521,6 @@ extern status_t		_kern_get_cpu_topology_info(
 						cpu_topology_node_info* topologyInfos,
 						uint32* topologyInfoCount);
 
-extern status_t		_kern_get_system_info_etc(int32 id, void *buffer,
-						size_t bufferSize);
 extern status_t		_kern_analyze_scheduling(bigtime_t from, bigtime_t until,
 						void* buffer, size_t size,
 						struct scheduling_analysis* analysis);

headers/private/system/system_info.h

@@ -9,21 +9,6 @@
 #include <OS.h>
 
 
-#define B_MEMORY_INFO	'memo'
-
-struct system_memory_info {
-	uint64		max_memory;
-	uint64		free_memory;
-	uint64		needed_memory;
-	uint64		max_swap_space;
-	uint64		free_swap_space;
-	uint64		block_cache_memory;
-	uint32		page_faults;
-
-	// TODO: add active/inactive page counts, swap in/out, ...
-};
-
-
 enum {
 	// team creation or deletion; object == -1; either one also triggers on
 	// exec()
@@ -67,7 +52,6 @@ status_t __get_system_info(system_info* info);
 status_t __get_cpu_info(uint32 firstCPU, uint32 cpuCount, cpu_info* info);
 status_t __get_cpu_topology_info(cpu_topology_node_info* topologyInfos,
 			uint32* topologyInfoCount);
-status_t __get_system_info_etc(int32 id, void* buffer, size_t bufferSize);
 
 status_t __start_watching_system(int32 object, uint32 flags, port_id port,
 			int32 token);