fix: remove process declaration

Likely added during ancient times for Svelte Native. It now gets in the way, and SvelteNative folks can add a declaration themselves if they need to

Fixes #2483

Author: dummdidumm

packages/svelte2tsx/svelte-shims-v4.d.ts

@@ -59,7 +59,6 @@ type KeysMatching<Obj, V> = {[K in keyof Obj]-?: Obj[K] extends V ? K : never}[k
 /** @internal PRIVATE API, DO NOT USE */
 declare type __sveltets_2_CustomEvents<T> = {[K in KeysMatching<T, CustomEvent>]: T[K] extends CustomEvent ? T[K]['detail']: T[K]}
 
-declare var process: NodeJS.Process & { browser: boolean }
 declare function __sveltets_2_ensureRightProps<Props>(props: Props): {};
 declare function __sveltets_2_instanceOf<T = any>(type: AConstructorTypeOf<T>): T;
 declare function __sveltets_2_allPropsType(): SvelteAllProps

packages/svelte2tsx/svelte-shims.d.ts

@@ -138,7 +138,6 @@ type KeysMatching<Obj, V> = {[K in keyof Obj]-?: Obj[K] extends V ? K : never}[k
 /** @internal PRIVATE API, DO NOT USE */
 declare type __sveltets_2_CustomEvents<T> = {[K in KeysMatching<T, CustomEvent>]: T[K] extends CustomEvent ? T[K]['detail']: T[K]}
 
-declare var process: NodeJS.Process & { browser: boolean }
 declare function __sveltets_2_ensureRightProps<Props>(props: Props): {};
 declare function __sveltets_2_instanceOf<T = any>(type: AConstructorTypeOf<T>): T;
 declare function __sveltets_2_allPropsType(): SvelteAllProps