Revert "Remove appendToGlobalCipherSuites"

This reverts commit 0af497570e.

u_common.go

@@ -99,6 +99,17 @@ var (
 	HelloAndroid_5_1_Browser ClientHelloID = ClientHelloID{helloAndroid, 22}
 )
 
+// Appends newCipher to cipherSuites, if not there already
+// Used to add old cipher ids
+func appendToGlobalCipherSuites(newCipher *cipherSuite) {
+	for _, c := range cipherSuites {
+		if c.id == newCipher.id {
+			return
+		}
+	}
+	cipherSuites = append(cipherSuites, newCipher)
+}
+
 // Appends {hash, sig} to supportedSignatureAlgorithms, if not there already
 // Used to enable already supported but disabled signatures
 func appendToGlobalSigAlgs(hash uint8, sig uint8) {