"Reverting 14684" - Building NSS libraries. It is causing local compilation failures.

runtime/bin/bin.gypi

Index: runtime/bin/bin.gypi
diff --git a/runtime/bin/bin.gypi b/runtime/bin/bin.gypi
index 7cb4feb3b6cba873c9ac7df13d972136fa626d6d..b9658b617489972141ac229cacd34945609ec429 100644
--- a/runtime/bin/bin.gypi
+++ b/runtime/bin/bin.gypi
@@ -306,9 +306,6 @@
     {
       'target_name': 'libdart_io',
       'type': 'static_library',
-      'dependencies': [
-        'nss',
-      ],
       'include_dirs': [
         '..',
       ],
@@ -337,28 +334,6 @@
       ],
     },
     {
-      'target_name': 'nss',
-      'type': 'none',
-      'dependencies': [
-        'bin/net/nss.gyp:nss',
-        'bin/net/nss.gyp:nspr',
-        'bin/net/nss.gyp:nssckbi',
-        'bin/net/nss.gyp:nss_static',
-        'bin/net/ssl.gyp:libssl',
-        'bin/net/zlib.gyp:zlib',
-        'bin/net/sqlite.gyp:sqlite',
-      ],
-      'export_dependent_settings': [
-        'bin/net/nss.gyp:nss',
-        'bin/net/nss.gyp:nspr',
-        'bin/net/nss.gyp:nssckbi',
-        'bin/net/nss.gyp:nss_static',
-        'bin/net/ssl.gyp:libssl',
-        'bin/net/zlib.gyp:zlib',
-        'bin/net/sqlite.gyp:sqlite',
-      ],
-    },
-    {
       'target_name': 'libdart_withcore',
       'type': 'static_library',
       'dependencies': [