Remove a few unused variables.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26249 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/kernel/util/cbuf.c

@@ -127,8 +127,6 @@ allocate_cbuf_mem(size_t size)
 	cbuf *buffer = NULL;
 	cbuf *lastBuffer = NULL;
 	cbuf *headBuffer = NULL;
-	int i;
-	int count;
 	size_t foundSize;
 
 	size = PAGE_ALIGN(size);
@@ -944,7 +942,6 @@ cbuf_test(void)
 status_t
 cbuf_init(void)
 {
-	cbuf *buffer;
 	int i;
 
 	// add the debug command

src/system/kernel/vm/vm.cpp

@@ -2336,8 +2336,6 @@ vm_copy_on_write_area(vm_cache* lowerCache)
 {
 	vm_store *store;
 	vm_cache *upperCache;
-	vm_page *page;
-	status_t status;
 
 	TRACE(("vm_copy_on_write_area(cache = %p)\n", lowerCache));
 
@@ -3939,8 +3937,6 @@ vm_init(kernel_args *args)
 status_t
 vm_init_post_sem(kernel_args *args)
 {
-	vm_area *area;
-
 	// This frees all unused boot loader resources and makes its space available again
 	arch_vm_init_end(args);
 	unreserve_boot_loader_ranges(args);
@@ -4605,7 +4601,6 @@ vm_soft_fault(addr_t originalAddress, bool isWrite, bool isUser)
 
 	vm_cache *topCache = vm_area_get_locked_cache(area);
 	off_t cacheOffset = address - area->base + area->cache_offset;
-	int32 changeCount = addressSpace->change_count;
 
 	atomic_add(&area->no_cache_change, 1);
 		// make sure the area's cache isn't replaced during the page fault

src/system/kernel/vm/vm_page.cpp

@@ -596,7 +596,6 @@ static int
 dump_page_stats(int argc, char **argv)
 {
 	uint32 counter[8];
-	int32 totalActive;
 	addr_t i;
 
 	memset(counter, 0, sizeof(counter));
@@ -785,7 +784,6 @@ page_scrubber(void *unused)
 		snooze(100000); // 100ms
 
 		if (sFreePageQueue.count > 0) {
-			cpu_status state;
 			vm_page *page[SCRUB_SIZE];
 			int32 i, scrubCount;
 
@@ -1432,8 +1430,6 @@ vm_page_schedule_write_page_range(struct vm_cache *cache, uint32 firstPage,
 	for (VMCachePagesTree::Iterator it
 				= cache->pages.GetIterator(firstPage, true, true);
 			vm_page *page = it.Next();) {
-		bool dequeuedPage = false;
-
 		if (page->cache_offset >= endPage)
 			break;
 
@@ -1669,7 +1665,6 @@ vm_page_reserve_pages(uint32 count)
 vm_page *
 vm_page_allocate_page(int pageState, bool reserved)
 {
-	ConditionVariableEntry freeConditionEntry;
 	page_queue *queue;
 	page_queue *otherQueue;