Remove unnecessary whitespace

types/highcharts/index.d.ts

@@ -5720,7 +5720,7 @@ declare namespace Highcharts {
          */
         Date?: Date;
         /**
-         * A callback to return the time zone offset for a given datetime. It takes the timestamp in terms of milliseconds since 
+         * A callback to return the time zone offset for a given datetime. It takes the timestamp in terms of milliseconds since
          * January 1 1970, and returns the timezone offset in minutes. This provides a hook for drawing time based charts in
          * specific time zones using their local DST crossover dates, with the help of external libraries.
          * @default undefined