refactor(env/java): shorten excessive comment

bin/templates/cordova/lib/env/java.js

@@ -58,22 +58,9 @@ const java = {
             throw new CordovaError(msg);
         }
 
-        /*
-        A regex match for the java version looks like the following:
-
-        version: [
-            'javac 1.8.0',
-            '1.8.0',
-            index: 45,
-            input: 'Picked up _JAVA_OPTIONS: -Xms1024M -Xmx2048M\njavac 1.8.0_271',
-            groups: undefined
-        ]
-
-        We have to use a regular expression to get the java version, because on some environments
-        (e.g. macOS Big Sur) javac prints _JAVA_OPTIONS before printing the version and semver.coerce()
-        will fail to get the correct version from the output.
-        */
-
+        // We have to filter the output, because javac prints _JAVA_OPTIONS
+        // before printing the version which causes semver.coerce to fail to get
+        // the correct version if those options contain any numbers.
         const match = /javac\s+([\d.]+)/i.exec(javacOutput);
         return semver.coerce(match && match[1]);
     },