tests: remove obsolete strace-f.test

strace-f.test is too inexact while fork-f.test does the right thing.

* tests/strace-f.test: Remove.
* tests/Makefile.am (MISC_TESTS): Remove it.
* strace.spec (BuildRequires): Remove time.

strace.spec

@@ -7,7 +7,6 @@ License: BSD
 Group: Development/Debuggers
 URL: http://sourceforge.net/projects/strace/
 Source: http://downloads.sourceforge.net/strace/%{srcname}.tar.xz
-BuildRequires: time
 %ifarch x86_64
 # for experimental -k option
 BuildRequires: libunwind-devel

tests/Makefile.am

@@ -654,7 +654,6 @@ MISC_TESTS = \
 	strace-S.test \
 	strace-T.test \
 	strace-V.test \
-	strace-f.test \
 	strace-ff.test \
 	strace-r.test \
 	strace-t.test \

tests/strace-f.test

@@ -1,10 +0,0 @@
-#!/bin/sh
-
-# Ensure that strace -f works.
-
-. "${srcdir=.}/init.sh"
-
-time=/usr/bin/time
-check_prog $time
-check_prog ls
-run_strace -f $time ls > /dev/null