remove sfeed_tail and recently added security considerations

... both are out-of-scope for sfeed.

- sfeed_tail can be written as some simple customized awk script reading from a
  FIFO. The C version did not work well on FIFO's.
- Security considerations are mentioned in the official HTML spec and applies to
  all HTML and protocol handlers, so is out-of-scope.

1 files changed, 0 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index a53f31a..37a881c 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,6 @@ BIN = \
 	sfeed_mbox\
 	sfeed_opml_import\
 	sfeed_plain\
-	sfeed_tail\
 	sfeed_twtxt\
 	sfeed_web\
 	sfeed_xmlenc
@@ -24,7 +23,6 @@ SCRIPTS = \
 
 SRC = ${BIN:=.c}
 HDR = \
-	tree.h\
 	util.h\
 	xml.h