Fix RegExp.prototype.compile.length to be 2

src/js/regexp.js

Index: src/js/regexp.js
diff --git a/src/js/regexp.js b/src/js/regexp.js
index 3ca5c39811ea869449295a715298642ac0f0f790..2ad7e336ea8c30a7cc3c22dd35fad345f0864d09 100644
--- a/src/js/regexp.js
+++ b/src/js/regexp.js
@@ -693,9 +693,6 @@ utils.InstallGetter(GlobalRegExp.prototype, 'ignoreCase', RegExpGetIgnoreCase);
 utils.InstallGetter(GlobalRegExp.prototype, 'multiline', RegExpGetMultiline);
 utils.InstallGetter(GlobalRegExp.prototype, 'source', RegExpGetSource);
 
-// The length of compile is 1 in SpiderMonkey.
-%FunctionSetLength(GlobalRegExp.prototype.compile, 1);
-
 // The properties `input` and `$_` are aliases for each other.  When this
 // value is set the value it is set to is coerced to a string.
 // Getter and setter for the input.