Remove stale code for hybrid heap and incremental GC

The hybrid heap emulator was last working in the non-SMP R11B
run-time system. When the constant pools were introduced in R12B,
the hybrid heap emulator was not updated to handle them.

At this point, the harm from reduced readability of the code is
greater than any potential usefulness of keeping the code.

1 files changed, 0 insertions, 22 deletions

diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 28aaedf2e2..5b79c40d93 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -749,24 +749,6 @@ struct process {
 #endif
 #endif
 
-#ifdef HYBRID
-    Eterm *rrma;                /* Remembered roots to Message Area */
-    Eterm **rrsrc;              /* The source of the root */
-    Uint nrr;                   /* Number of remembered roots */
-    Uint rrsz;                  /* Size of root array */
-#endif
-
-#ifdef HYBRID
-    Uint active;                /* Active since last major collection? */
-    Uint active_index;          /* Index in the active process array */
-#endif
- 
-#ifdef INCREMENTAL
-    Process *active_next; /* Active processes to scan for roots */
-    Process *active_prev; /* in collection of the message area  */
-    Eterm *scan_top;
-#endif
-
 #ifdef CHECK_FOR_HOLES
     Eterm* last_htop;		/* No need to scan the heap below this point. */
     ErlHeapFragment* last_mbuf;	/* No need to scan beyond this mbuf. */
@@ -888,10 +870,6 @@ Eterm* erts_set_hole_marker(Eterm* ptr, Uint sz);
 #endif
 
 extern Process** process_tab;
-#ifdef HYBRID
-extern Uint erts_num_active_procs;
-extern Process** erts_active_procs;
-#endif
 extern Uint erts_max_processes;
 extern Uint erts_process_tab_index_mask;
 extern Uint erts_default_process_flags;