Removing NSS files and USE_OPENSSL flag

net/third_party/nss/patches/secretexporterlocks.patch

-diff --git a/lib/ssl/sslinfo.c b/lib/ssl/sslinfo.c
-index 527b1a4..c59879c 100644
---- a/lib/ssl/sslinfo.c
-+++ b/lib/ssl/sslinfo.c
-@@ -406,8 +406,13 @@ SSL_ExportKeyingMaterial(PRFileDesc *fd,
-         return SECFailure;
-     }
- 
-+    ssl_GetRecvBufLock(ss);
-+    ssl_GetSSL3HandshakeLock(ss);
-+
-     if (ss->version < SSL_LIBRARY_VERSION_3_1_TLS) {
-         PORT_SetError(SSL_ERROR_FEATURE_NOT_SUPPORTED_FOR_VERSION);
-+        ssl_ReleaseSSL3HandshakeLock(ss);
-+        ssl_ReleaseRecvBufLock(ss);
-         return SECFailure;
-     }
- 
-@@ -418,6 +423,8 @@ SSL_ExportKeyingMaterial(PRFileDesc *fd,
-     }
-     val = PORT_Alloc(valLen);
-     if (!val) {
-+        ssl_ReleaseSSL3HandshakeLock(ss);
-+        ssl_ReleaseRecvBufLock(ss);
-         return SECFailure;
-     }
-     i = 0;
-@@ -445,6 +452,8 @@ SSL_ExportKeyingMaterial(PRFileDesc *fd,
-                                          valLen, out, outLen);
-     }
-     ssl_ReleaseSpecReadLock(ss);
-+    ssl_ReleaseSSL3HandshakeLock(ss);
-+    ssl_ReleaseRecvBufLock(ss);
- 
-     PORT_ZFree(val, valLen);
-     return rv;