Remove single-line comment style

grammar.js

@@ -317,13 +317,10 @@ module.exports = grammar({
 
     at_keyword: $ => /@[a-zA-Z-_]+/,
 
-    comment: $ => token(choice(
-      seq('//', /.*/),
-      seq(
-        '/*',
-        /[^*]*\*+([^/*][^*]*\*+)*/,
-        '/'
-      )
+    comment: $ => token(seq(
+      '/*',
+      /[^*]*\*+([^/*][^*]*\*+)*/,
+      '/'
     ))
   }
 })

src/grammar.json

@@ -1571,37 +1571,19 @@
     "comment": {
       "type": "TOKEN",
       "content": {
-        "type": "CHOICE",
+        "type": "SEQ",
         "members": [
           {
-            "type": "SEQ",
-            "members": [
-              {
-                "type": "STRING",
-                "value": "//"
-              },
-              {
-                "type": "PATTERN",
-                "value": ".*"
-              }
-            ]
+            "type": "STRING",
+            "value": "/*"
           },
           {
-            "type": "SEQ",
-            "members": [
-              {
-                "type": "STRING",
-                "value": "/*"
-              },
-              {
-                "type": "PATTERN",
-                "value": "[^*]*\\*+([^\\/*][^*]*\\*+)*"
-              },
-              {
-                "type": "STRING",
-                "value": "/"
-              }
-            ]
+            "type": "PATTERN",
+            "value": "[^*]*\\*+([^\\/*][^*]*\\*+)*"
+          },
+          {
+            "type": "STRING",
+            "value": "/"
           }
         ]
       }