Rollback an errant commit.

This reverts commit 0383adbcb9.

Source/PLCrashAsyncMObject.c

@@ -157,10 +157,6 @@ plcrash_error_t plcrash_async_mobject_init (plcrash_async_mobject_t *mobj, mach_
     
     /* Save the task-relative address */
     mobj->task_address = task_addr;
-    
-    /* Save the task reference */
-    mobj->task = task;
-    mach_port_mod_refs(mach_task_self(), mobj->task, MACH_PORT_RIGHT_SEND, 1);
 
     return PLCRASH_ESUCCESS;
 }
@@ -184,14 +180,6 @@ pl_vm_address_t plcrash_async_mobject_length (plcrash_async_mobject_t *mobj) {
     return mobj->length;
 }
 
-/**
- * Return a borrowed reference to the backing task for this mapping.
- *
- * @param mobj An initialized memory object.
- */
-task_t plcrash_async_mobject_task (plcrash_async_mobject_t *mobj) {
-    return mobj->task;
-}
 
 /**
  * Verify that @a length bytes starting at local @a address is within @a mobj's mapped range.
@@ -351,9 +339,6 @@ void plcrash_async_mobject_free (plcrash_async_mobject_t *mobj) {
     kern_return_t kt;
     if ((kt = vm_deallocate(mach_task_self(), mobj->address, mobj->length)) != KERN_SUCCESS)
         PLCF_DEBUG("vm_deallocate() failure: %d", kt);
-
-    /* Decrement our task refcount */
-    mach_port_mod_refs(mach_task_self(), mobj->task, MACH_PORT_RIGHT_SEND, -1);
 }
 
 /**

Source/PLCrashAsyncMObject.h

@@ -39,9 +39,6 @@
  * An async-accessible memory mapped object.
  */
 typedef struct plcrash_async_mobject {
-    /** The task from which the memory was mapped */
-    task_t task;
-
     /** The in-memory address at which the target address has been mapped. This address is offset
      * from the actual starting address, to account for the rounding of mappings to whole pages. */
     uintptr_t address;
@@ -67,8 +64,6 @@ plcrash_error_t plcrash_async_mobject_init (plcrash_async_mobject_t *mobj, mach_
 pl_vm_address_t plcrash_async_mobject_base_address (plcrash_async_mobject_t *mobj);
 pl_vm_address_t plcrash_async_mobject_length (plcrash_async_mobject_t *mobj);
 
-task_t plcrash_async_mobject_task (plcrash_async_mobject_t *mobj);
-
 bool plcrash_async_mobject_verify_local_pointer (plcrash_async_mobject_t *mobj, uintptr_t address, pl_vm_off_t offset, size_t length);
 void *plcrash_async_mobject_remap_address (plcrash_async_mobject_t *mobj, pl_vm_address_t address, pl_vm_off_t offset, size_t length);