some cleanups here and there

include/paging.h

@@ -41,8 +41,6 @@ extern uint32_t *kpage_dir;
 void grub_memory_map(unsigned int magic, struct multiboot_info* mbi);
 void enablePaging();
 void loadPageDirectory(uint32_t* page_directory);
-void paging_init();
-void test_paging();
 
 //page_alloc.c
 void set_bit(uint32_t page_index);
@@ -59,9 +57,4 @@ void unmap_page(void *virtualaddr);
 void map_kernel_page(void* virtualaddr, unsigned int flags);
 void* setup_user_process(void* user_code_phys, uint32_t* user_stack_top);
 
-//heap.c
-void heap_init();
-void* heap_alloc(uint32_t size);
-void heap_free(void* ptr);
-
 #endif