[gimp] libgimpbase: remove gimpdatafiles.[ch], it's deprecated and now unused

[Michael Natterer <mitch src gnome org>]

commit 61013c392c263722df287497bc8fe82820cb3c90
Author: Michael Natterer <mitch gimp org>
Date:   Fri Jun 28 12:02:31 2019 +0200

    libgimpbase: remove gimpdatafiles.[ch], it's deprecated and now unused

 libgimpbase/Makefile.am     |   3 -
 libgimpbase/gimpbase.h      |   1 -
 libgimpbase/gimpbasetypes.h |   6 +-
 libgimpbase/gimpdatafiles.c | 225 --------------------------------------------
 libgimpbase/gimpdatafiles.h |  72 --------------
 5 files changed, 1 insertion(+), 306 deletions(-)
---
diff --git a/libgimpbase/Makefile.am b/libgimpbase/Makefile.am
index 4214939b09..8ddeb7c17c 100644
--- a/libgimpbase/Makefile.am
+++ b/libgimpbase/Makefile.am
@@ -107,8 +107,6 @@ libgimpbase_sources = \
        gimpchecks.h            \
        gimpcpuaccel.c          \
        gimpcpuaccel.h          \
-       gimpdatafiles.c         \
-       gimpdatafiles.h         \
        gimpenv.c               \
        gimpenv.h               \
        gimpmemsize.c           \
@@ -156,7 +154,6 @@ libgimpbaseinclude_HEADERS = \
        gimpversion.h           \
        \
        gimpchecks.h            \
-       gimpdatafiles.h         \
        gimpenv.h               \
        gimpmemsize.h           \
        gimpmetadata.h          \
diff --git a/libgimpbase/gimpbase.h b/libgimpbase/gimpbase.h
index 2cc1c4fa59..7db1fcfa03 100644
--- a/libgimpbase/gimpbase.h
+++ b/libgimpbase/gimpbase.h
@@ -25,7 +25,6 @@
 
 #include <libgimpbase/gimpchecks.h>
 #include <libgimpbase/gimpcpuaccel.h>
-#include <libgimpbase/gimpdatafiles.h>
 #include <libgimpbase/gimpenv.h>
 #include <libgimpbase/gimplimits.h>
 #include <libgimpbase/gimpmemsize.h>
diff --git a/libgimpbase/gimpbasetypes.h b/libgimpbase/gimpbasetypes.h
index 9c3680d710..f76b888b0a 100644
--- a/libgimpbase/gimpbasetypes.h
+++ b/libgimpbase/gimpbasetypes.h
@@ -51,11 +51,7 @@ typedef struct _GimpEnumDesc     GimpEnumDesc;
 typedef struct _GimpFlagsDesc    GimpFlagsDesc;
 typedef struct _GimpValueArray   GimpValueArray;
 
-
-typedef void (* GimpDatafileLoaderFunc) (const GimpDatafileData *file_data,
-                                         gpointer                user_data);
-
-typedef struct _GimpMetadata GimpMetadata;
+typedef struct _GimpMetadata     GimpMetadata;
 
 
 /**