Modules compatibility: removed unneeded NGX_HAVE_REUSEPORT checks.

Removed NGX_HAVE_REUSEPORT from the signature accordingly.

src/core/ngx_connection.h

diff --git a/src/core/ngx_connection.h b/src/core/ngx_connection.h
index d9ee685..36907dd 100644
--- a/src/core/ngx_connection.h
+++ b/src/core/ngx_connection.h
@@ -69,10 +69,8 @@
 #if (NGX_HAVE_INET6)
     unsigned            ipv6only:1;
 #endif
-#if (NGX_HAVE_REUSEPORT)
     unsigned            reuseport:1;
     unsigned            add_reuseport:1;
-#endif
     unsigned            keepalive:2;
 
 #if (NGX_HAVE_DEFERRED_ACCEPT)

src/core/ngx_module.h

diff --git a/src/core/ngx_module.h b/src/core/ngx_module.h
index 4ddab56..51a9baa 100644
--- a/src/core/ngx_module.h
+++ b/src/core/ngx_module.h
@@ -72,12 +72,7 @@
 #endif
 
 #define NGX_MODULE_SIGNATURE_9   "1"
-
-#if (NGX_HAVE_REUSEPORT)
 #define NGX_MODULE_SIGNATURE_10  "1"
-#else
-#define NGX_MODULE_SIGNATURE_10  "0"
-#endif
 
 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
 #define NGX_MODULE_SIGNATURE_11  "1"

src/http/ngx_http_core_module.h

diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index fdd7004..78f69e2 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -72,9 +72,7 @@
 #if (NGX_HAVE_INET6)
     unsigned                   ipv6only:1;
 #endif
-#if (NGX_HAVE_REUSEPORT)
     unsigned                   reuseport:1;
-#endif
     unsigned                   so_keepalive:2;
     unsigned                   proxy_protocol:1;
 

src/stream/ngx_stream.h

diff --git a/src/stream/ngx_stream.h b/src/stream/ngx_stream.h
index 7cb8ae3..15b96ff 100644
--- a/src/stream/ngx_stream.h
+++ b/src/stream/ngx_stream.h
@@ -55,9 +55,7 @@
 #if (NGX_HAVE_INET6)
     unsigned                       ipv6only:1;
 #endif
-#if (NGX_HAVE_REUSEPORT)
     unsigned                       reuseport:1;
-#endif
     unsigned                       so_keepalive:2;
     unsigned                       proxy_protocol:1;
 #if (NGX_HAVE_KEEPALIVE_TUNABLE)