[libgda] Removed references to removed gda_holder_attributes_manager

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit fe9f3d2598e525fea45822d07f77fa296611a148
Author: Daniel Espinosa Ortiz <esodan gmail com>
Date:   Sat Feb 23 21:38:42 2019 -0600

    Removed references to removed gda_holder_attributes_manager

 libgda/gda-data-model-iter.c     | 4 ----
 libgda/gda-data-proxy.c          | 2 --
 libgda/gda-util.c                | 1 -
 libgda/libgda-global-variables.h | 1 -
 libgda/libgda.symbols            | 1 -
 5 files changed, 9 deletions(-)
---
diff --git a/libgda/gda-data-model-iter.c b/libgda/gda-data-model-iter.c
index 6bdca8701..0f2413e5c 100644
--- a/libgda/gda-data-model-iter.c
+++ b/libgda/gda-data-model-iter.c
@@ -33,10 +33,6 @@
 #include "gda-enums.h"
 #include "gda-data-select.h"
 
-extern GdaAttributesManager *_gda_column_attributes_manager;
-extern GdaAttributesManager *gda_holder_attributes_manager;
-
-
 /* private structure */
 typedef struct
 {
diff --git a/libgda/gda-data-proxy.c b/libgda/gda-data-proxy.c
index 7b12ff8e6..a939f7eb2 100644
--- a/libgda/gda-data-proxy.c
+++ b/libgda/gda-data-proxy.c
@@ -104,8 +104,6 @@ static void fetch_current_cached_changes (GdaDataProxy *proxy);
 #define DEBUG_SYNC
 #undef DEBUG_SYNC
 
-extern GdaAttributesManager *gda_holder_attributes_manager;
-
 static GMutex parser_mutex;
 static GdaSqlParser *internal_parser;
 static GMutex provider_mutex;
diff --git a/libgda/gda-util.c b/libgda/gda-util.c
index 49fc4a257..5b957e066 100644
--- a/libgda/gda-util.c
+++ b/libgda/gda-util.c
@@ -62,7 +62,6 @@
 #include "keywords_hash.code" /* this one is dynamically generated */
 
 extern gchar *gda_lang_locale;
-extern GdaAttributesManager *gda_holder_attributes_manager;
 
 /**
  * gda_g_type_to_string:
diff --git a/libgda/libgda-global-variables.h b/libgda/libgda-global-variables.h
index f0f710944..8c617b364 100644
--- a/libgda/libgda-global-variables.h
+++ b/libgda/libgda-global-variables.h
@@ -35,6 +35,5 @@
 IMPORT extern gchar *gda_numeric_locale;
 IMPORT extern gchar *gda_lang_locale;
 IMPORT extern xmlDtdPtr gda_paramlist_dtd;
-IMPORT extern GdaAttributesManager *gda_holder_attributes_manager;
 
 #endif
diff --git a/libgda/libgda.symbols b/libgda/libgda.symbols
index 0f53738db..92a83c5e4 100644
--- a/libgda/libgda.symbols
+++ b/libgda/libgda.symbols
@@ -393,7 +393,6 @@
        gda_handler_time_set_str_spec
        gda_handler_type_get_type
        gda_handler_type_new
-       gda_holder_attributes_manager
        gda_holder_copy
        gda_holder_error_quark
        gda_holder_force_invalid