Remove dead snowflake code (#21041)

Co-authored-by: Nathan Sobo <1789+nathansobo@users.noreply.github.com>

Release Notes:

- N/A

crates/collab/src/api/events.rs

@@ -1588,48 +1588,3 @@ struct SnowflakeRow {
     pub user_properties: Option<serde_json::Value>,
     pub insert_id: Option<String>,
 }
-
-#[derive(Serialize, Deserialize)]
-struct SnowflakeData {
-    /// Identifier unique to each Zed installation (differs for stable, preview, dev)
-    pub installation_id: Option<String>,
-    /// Identifier unique to each logged in Zed user (randomly generated on first sign in)
-    /// Identifier unique to each Zed session (differs for each time you open Zed)
-    pub session_id: Option<String>,
-    pub metrics_id: Option<String>,
-    /// True for Zed staff, otherwise false
-    pub is_staff: Option<bool>,
-    /// Zed version number
-    pub app_version: String,
-    pub os_name: String,
-    pub os_version: Option<String>,
-    pub architecture: String,
-    /// Zed release channel (stable, preview, dev)
-    pub release_channel: Option<String>,
-    pub signed_in: bool,
-
-    #[serde(flatten)]
-    pub editor_event: Option<EditorEvent>,
-    #[serde(flatten)]
-    pub inline_completion_event: Option<InlineCompletionEvent>,
-    #[serde(flatten)]
-    pub call_event: Option<CallEvent>,
-    #[serde(flatten)]
-    pub assistant_event: Option<AssistantEvent>,
-    #[serde(flatten)]
-    pub cpu_event: Option<CpuEvent>,
-    #[serde(flatten)]
-    pub memory_event: Option<MemoryEvent>,
-    #[serde(flatten)]
-    pub app_event: Option<AppEvent>,
-    #[serde(flatten)]
-    pub setting_event: Option<SettingEvent>,
-    #[serde(flatten)]
-    pub extension_event: Option<ExtensionEvent>,
-    #[serde(flatten)]
-    pub edit_event: Option<EditEvent>,
-    #[serde(flatten)]
-    pub repl_event: Option<ReplEvent>,
-    #[serde(flatten)]
-    pub action_event: Option<ActionEvent>,
-}