removed login from php, not used

backend/php/css/login.css

@@ -1,31 +0,0 @@
-/* Bordered form */
-form {
-    border: 3px solid #f1f1f1;
-}
-
-input[type=text], input[type=password] {
-    width: 100%;
-    padding: 12px 20px;
-    margin: 8px 0;
-    display: inline-block;
-    border: 1px solid #ccc;
-    box-sizing: border-box;
-}
-
-button {
-    background-color: #04AA6D;
-    color: white;
-    padding: 14px 20px;
-    margin: 8px 0;
-    border: none;
-    cursor: pointer;
-    width: 100%;
-}
-
-button:hover {
-    opacity: 0.8;
-}
-
-.container {
-    padding: 16px;
-}