[tracker] docs: Delete dia diagrams, and pre-generated PNGs

[Carlos Garnacho <carlosg src gnome org>]

commit 701810bcd262eff63ecd9f94215c507fadddaca0
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Jun 29 20:58:21 2015 +0200

    docs: Delete dia diagrams, and pre-generated PNGs
    
    Those weren't that much clear nor useful, those are deleted in
    a separate commit in case we want to rescue and rework them
    someday.

 docs/ontologies/mfo/feeds-overview.dia             |  Bin 5068 -> 0 bytes
 docs/ontologies/mlo/location-overview.dia          |  Bin 3853 -> 0 bytes
 docs/ontologies/nie/overview.dia                   |  Bin 2086 -> 0 bytes
 docs/ontologies/nmm/images-overview.dia            |  Bin 5152 -> 0 bytes
 docs/ontologies/nmm/radio-overview.dia             |  Bin 3564 -> 0 bytes
 docs/ontologies/nmo/email-mimeparts-overview.dia   |  Bin 2413 -> 0 bytes
 docs/ontologies/nmo/message-class-overview.dia     |  Bin 3377 -> 0 bytes
 docs/ontologies/notation.dia                       |  Bin 2140 -> 0 bytes
 docs/reference/ontology/Makefile.am                |   20 --------------------
 .../ontology/email-mimeparts-overview.png          |  Bin 19019 -> 0 bytes
 docs/reference/ontology/feeds-overview.png         |  Bin 69443 -> 0 bytes
 docs/reference/ontology/images-overview.png        |  Bin 73835 -> 0 bytes
 docs/reference/ontology/location-overview.png      |  Bin 57409 -> 0 bytes
 docs/reference/ontology/message-class-overview.png |  Bin 32467 -> 0 bytes
 docs/reference/ontology/notation.png               |  Bin 9906 -> 0 bytes
 docs/reference/ontology/overview.png               |  Bin 19004 -> 0 bytes
 docs/reference/ontology/radio-overview.png         |  Bin 27253 -> 0 bytes
 17 files changed, 0 insertions(+), 20 deletions(-)
---
diff --git a/docs/reference/ontology/Makefile.am b/docs/reference/ontology/Makefile.am
index 5103de6..f4dc460 100644
--- a/docs/reference/ontology/Makefile.am
+++ b/docs/reference/ontology/Makefile.am
@@ -1,24 +1,5 @@
 AUTOMAKE_OPTIONS = 1.6
 
-# Generation of the additional PNG files from DIA files
-#  (list of original '.dia' files with '.png' extension)
-ONTOLOGY_DIAGRAMS =                                    \
-       $(top_srcdir)/docs/ontologies/notation.dia     \
-       $(top_srcdir)/docs/ontologies/mfo/feeds-overview.dia \
-       $(top_srcdir)/docs/ontologies/nmm/radio-overview.dia \
-       $(top_srcdir)/docs/ontologies/nmm/images-overview.dia \
-       $(top_srcdir)/docs/ontologies/mlo/location-overview.dia \
-       $(top_srcdir)/docs/ontologies/nie/overview.dia \
-       $(top_srcdir)/docs/ontologies/nmo/message-class-overview.dia \
-       $(top_srcdir)/docs/ontologies/nmo/email-mimeparts-overview.dia
-
-# The wanted PNG files
-ONTOLOGY_DIAGRAMS_PNG = $(notdir $(ONTOLOGY_DIAGRAMS:.dia=.png))
-
-# DIA to PNG conversion
-update-diagrams: $(ONTOLOGY_DIAGRAMS)
-       $(AM_V_GEN) dia -t png $^ 2>/dev/null
-
 # The original Ontology explanation files
 ONTOLOGY_EXPLANATIONS =                                \
        $(top_srcdir)/docs/ontologies/mfo/explanation.xml \
@@ -68,7 +49,6 @@ include $(top_srcdir)/gtk-doc.make
 #  by gtk-doc
 EXTRA_DIST +=                                          \
        version.xml.in                                 \
-       $(ONTOLOGY_DIAGRAMS)                           \
        $(ONTOLOGY_EXPLANATIONS)
 
 CLEANFILES +=                                          \