Revert session id change (#831)

Author: alexeyzimarev

docs/.vuepress/client.ts

@@ -49,12 +49,12 @@ const reload = () => {
 
 const leave = (to: RouteLocationNormalized, from: RouteLocationNormalized) => {
     if (from.path !== to.path && typeof window !== "undefined" && window.analytics !== undefined) {
-        const sessionId = (typeof window.posthog !== "undefined") ? window.posthog.getSessionId() : null;
+        // const sessionId = (typeof window.posthog !== "undefined") ? window.posthog.getSessionId() : null;
         window.analytics.track({
             event: "$pageleave",
             properties: {
                 $host: window.location.hostname,
-                $session_id: sessionId
+                // $session_id: sessionId
             }
         });
     }

docs/.vuepress/public/js/snippet.js

@@ -94,7 +94,7 @@
                     site: "docs",
                     title: "Home",
                     $host: window.location.hostname,
-                    $session_id: posthog.getSessionId(),
+                    // $session_id: posthog.getSessionId(),
                 })
             }
         });