[gnumeric] Style: don't track deps per-style anymore.

[Morten Welinder <mortenw src gnome org>]

commit eee4e357ef164963021596c8a385ba685b326895
Author: Morten Welinder <terra gnome org>
Date:   Mon Jan 18 17:18:37 2021 -0500

    Style: don't track deps per-style anymore.
    
    We no longer insert anything into ->deps, so drop it completely together
    with code that's a no-op now.

 src/mstyle.c | 31 +------------------------------
 1 file changed, 1 insertion(+), 30 deletions(-)
---
diff --git a/src/mstyle.c b/src/mstyle.c
index f0cd89c5c..4c4c8ff27 100644
--- a/src/mstyle.c
+++ b/src/mstyle.c
@@ -105,8 +105,6 @@ struct _GnmStyle {
        GnmInputMsg             *input_msg;
        GnmStyleConditions      *conditions;
        GPtrArray               *cond_styles;
-
-       GPtrArray *deps;
 };
 
 #define elem_changed(style, elem) do { (style)->changed |= (1u << (elem)); } while(0)
@@ -870,12 +868,6 @@ gnm_style_unref (GnmStyle const *style)
                gnm_style_clear_pango (unconst);
                gnm_style_clear_font (unconst);
 
-               if (style->deps) {
-                       if (style->deps->len > 0)
-                               g_warning ("Leftover style deps!");
-                       g_ptr_array_free (style->deps, TRUE);
-               }
-
                CHUNK_FREE (gnm_style_pool, unconst);
        }
 }
@@ -2350,7 +2342,6 @@ gnm_style_link_dependents (GnmStyle *style, GnmRange const *r)
 void
 gnm_style_unlink_dependents (GnmStyle *style, GnmRange const *r)
 {
-       unsigned ui, k;
        GnmStyleConditions *sc;
        Sheet *sheet;
 
@@ -2366,27 +2357,7 @@ gnm_style_unlink_dependents (GnmStyle *style, GnmRange const *r)
                sheet_conditions_remove (sheet, r, style);
        }
 
-       if (!style->deps)
-               return;
-
-       for (ui = k = 0; ui < style->deps->len; ui++) {
-               GnmDependent *dep = g_ptr_array_index (style->deps, ui);
-               GnmCellPos const *pos = dependent_pos (dep);
-
-               if (dep->sheet->being_destructed ||
-                   range_contains (r, pos->col, pos->row)) {
-                       if (debug_style_deps)
-                               g_printerr ("Unlinking %s for %p\n",
-                                           cellpos_as_string (pos), style);
-                       dependent_set_expr (dep, NULL);
-                       g_free (dep);
-               } else {
-                       g_ptr_array_index (style->deps, k) = dep;
-                       k++;
-               }
-       }
-
-       g_ptr_array_set_size (style->deps, k);
+       // Validation -- see gnm_style_link_dependents
 }