MEDIUM: Remove 'option independant-streams'

It is deprecated with HAProxy 1.5. Time to remove it.
diff --git a/doc/configuration.txt b/doc/configuration.txt
index 279a781..5debec1 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -6600,10 +6600,6 @@
   data sent to the server. Doing so will typically break large HTTP posts from
   slow lines, so use it with caution.
 
-  Note: older versions used to call this setting "option independant-streams"
-        with a spelling mistake. This spelling is still supported but
-        deprecated.
-
   See also : "timeout client", "timeout server" and "timeout tunnel"
 
 
diff --git a/src/proxy.c b/src/proxy.c
index 469529d..731f5e2 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -106,7 +106,6 @@
 	{ "socket-stats",                 PR_O2_SOCKSTAT,  PR_CAP_FE, 0, 0 },
 	{ "tcp-smart-accept",             PR_O2_SMARTACC,  PR_CAP_FE, 0, 0 },
 	{ "tcp-smart-connect",            PR_O2_SMARTCON,  PR_CAP_BE, 0, 0 },
-	{ "independant-streams",          PR_O2_INDEPSTR,  PR_CAP_FE|PR_CAP_BE, 0, 0 },
 	{ "independent-streams",          PR_O2_INDEPSTR,  PR_CAP_FE|PR_CAP_BE, 0, 0 },
 	{ "http-use-proxy-header",        PR_O2_USE_PXHDR, PR_CAP_FE, 0, PR_MODE_HTTP },
 	{ "http-pretend-keepalive",       PR_O2_FAKE_KA,   PR_CAP_BE, 0, PR_MODE_HTTP },