query-engine-node-api: delete getConfig() (#3608)

The Prisma CLI now uses getConfig from the @prisma/prisma-fmt-wasm
package. This method is not used anymore.

We also observe a small size improvement:

Before:

-r-xr-xr-x 2 root root 14311096 Jan  1  1970 libquery_engine.node

After:

-r-xr-xr-x 2 root root 14282424 Jan  1  1970 libquery_engine.node

amounting to a ~30kb smaller node-api build of the query engine.

query-engine/query-engine-node-api/src/functions.rs

@@ -1,12 +1,8 @@
 use crate::error::ApiError;
-use napi::{bindgen_prelude::*, JsUnknown};
 use napi_derive::napi;
 use query_core::{schema::QuerySchemaRef, schema_builder};
 use request_handlers::dmmf;
-use std::{
-    collections::{BTreeMap, HashMap},
-    sync::Arc,
-};
+use std::sync::Arc;
 
 #[derive(serde::Serialize, Clone, Copy)]
 #[napi(object)]
@@ -39,43 +35,6 @@ pub fn dmmf(datamodel_string: String) -> napi::Result<String> {
     Ok(serde_json::to_string(&dmmf)?)
 }
 
-#[napi]
-pub fn get_config(js_env: Env, options: JsUnknown) -> napi::Result<JsUnknown> {
-    #[derive(serde::Deserialize)]
-    #[serde(rename_all = "camelCase")]
-    struct GetConfigOptions {
-        datamodel: String,
-        #[serde(default)]
-        ignore_env_var_errors: bool,
-        #[serde(default)]
-        datasource_overrides: BTreeMap<String, String>,
-        #[serde(default)]
-        env: HashMap<String, String>,
-    }
-
-    let options: GetConfigOptions = js_env.from_js_value(options)?;
-
-    let GetConfigOptions {
-        datamodel,
-        ignore_env_var_errors,
-        datasource_overrides,
-        env,
-    } = options;
-
-    let overrides: Vec<(_, _)> = datasource_overrides.into_iter().collect();
-    let mut config = psl::parse_configuration(&datamodel).map_err(|errors| ApiError::conversion(errors, &datamodel))?;
-
-    if !ignore_env_var_errors {
-        config
-            .resolve_datasource_urls_from_env(&overrides, |key| env.get(key).map(ToString::to_string))
-            .map_err(|errors| ApiError::conversion(errors, &datamodel))?;
-    }
-
-    let serialized = psl::get_config::config_to_mcf_json_value(&config);
-
-    js_env.to_js_value(&serialized)
-}
-
 #[napi]
 pub fn debug_panic(panic_message: Option<String>) -> napi::Result<()> {
     let user_facing = user_facing_errors::Error::from_panic_payload(Box::new(