Remove --enable-release which has no effects

configure.ac

@@ -1567,13 +1567,6 @@ AS_IF([test "${enable_coverage}" != "no"], [
 	LDFLAGS_save="${LDFLAGS}"
 ])
 
-dnl
-dnl  Enable release-specific flags
-dnl
-AC_ARG_ENABLE(release,
-[  --enable-release        activate extra optimizations (default disabled)])
-test "${enable_release}" != "yes" && enable_release="no"
-
 dnl
 dnl Stream output
 dnl
@@ -4949,7 +4942,6 @@ test "${enable_debug}" = "yes" && printf "debug "
 test "${enable_cprof}" = "yes" && printf "cprof "
 test "${enable_gprof}" = "yes" && printf "gprof "
 test "${enable_optimizations}" = "yes" && printf "optim "
-test "${enable_release}" = "yes" && printf "release " || printf "devel "
 echo ""
 if test "${enable_vlc}" != "no"; then
 echo "vlc aliases           :${ALIASES}"

m4/vlc.m4

@@ -103,7 +103,6 @@ AC_DEFUN([VLC_OUTPUT_VLC_CONFIG_IN], [
           -e "s/@cprof@/${enable_cprof}/" \
           -e "s/@optim@/${enable_optimizations}/" \
           -e "s/@debug@/${enable_debug}/" \
-          -e "s/@release@/${enable_release}/" \
           -e "s/@PLUGINS@/${PLUGINS}/" \
           -e "s/@BUILTINS@/${BUILTINS}/" \
           -e "s/@CFLAGS_TUNING@/${CFLAGS_TUNING}/" \

vlc-config.in.in

@@ -5,7 +5,6 @@ exec_prefix="@exec_prefix@"
 exec_prefix_set=no
 datarootdir="@datarootdir@"
 
-release="@release@"
 debug="@debug@"
 gprof="@gprof@"
 cprof="@cprof@"