Undo the changes in inlineCompletionsView.ts introduced by microsoft#252308 (microsoft#253614)

Author: alexdima

src/vs/editor/contrib/inlineCompletions/browser/view/inlineCompletionsView.ts

@@ -82,17 +82,11 @@ export class InlineCompletionsView extends Disposable {
 
 		this._register(createStyleSheetFromObservable(derived(reader => {
 			const fontFamily = this._fontFamily.read(reader);
-			let fontSize: string = this._editor.getOption(EditorOption.fontSize) + 'px';
-			const cursorSelection = this._editorObs.cursorSelection.read(reader);
-			if (cursorSelection) {
-				fontSize = this._editor.getFontSizeAtPosition(cursorSelection.getEndPosition()) ?? fontSize;
-			}
 			return `
 .monaco-editor .ghost-text-decoration,
 .monaco-editor .ghost-text-decoration-preview,
 .monaco-editor .ghost-text {
 	font-family: ${fontFamily};
-	font-size: ${fontSize};
 }`;
 		})));