[ostree] build: Delete generated parse-datetime.c file, use AM_V_GEN

[Colin Walters <walters src gnome org>]

commit 76f4507557ca83ced53aab017e864bcef88f57e1
Author: Colin Walters <walters verbum org>
Date:   Mon Dec 7 10:33:23 2015 -0500

    build: Delete generated parse-datetime.c file, use AM_V_GEN
    
    Bison is a well known external dependency, so just require it.
    Including the generated content in git means it may or may not
    be regenerated based randomly on timestamps, etc.
    
    Also use `$(AM_V_GEN)` so we get prettier output.

 Makefile-ostree.am          |    4 +-
 src/ostree/parse-datetime.c | 3373 -------------------------------------------
 2 files changed, 2 insertions(+), 3375 deletions(-)
---
diff --git a/Makefile-ostree.am b/Makefile-ostree.am
index 92ff92b..987f15d 100644
--- a/Makefile-ostree.am
+++ b/Makefile-ostree.am
@@ -85,8 +85,8 @@ ostree_SOURCES += \
         src/ostree/ot-remote-builtin-refs.c \
        $(NULL)
 
-src/ostree/parse-datetime.c: src/ostree/parse-datetime.y
-       $(YACC) $< -o $@
+src/ostree/parse-datetime.c: src/ostree/parse-datetime.y Makefile
+       $(AM_V_GEN) $(YACC) $< -o $@
 
 
 ostree_bin_shared_cflags = $(AM_CFLAGS) -I$(srcdir)/src/libotutil -I$(srcdir)/src/libostree 
-I$(srcdir)/src/ostree \