refactor: inline the other create == null checks

Author: JoshuaKGoldberg

packages/react/src/ReactHooks.js

@@ -93,7 +93,7 @@ export function useEffect(
   updateDeps?: Array<mixed> | void | null,
   destroy?: ((resource: {...} | void | null) => void) | void,
 ): void {
-  if (__DEV__ ) {
+  if (__DEV__) {
     if (create == null) {
       console.warn(
         'React Hook useEffect requires an effect callback. Did you forget to pass a callback to the hook?',
@@ -126,10 +126,12 @@ export function useInsertionEffect(
   create: () => (() => void) | void,
   deps: Array<mixed> | void | null,
 ): void {
-  if (__DEV__ && create == null) {
-    console.warn(
-      'React Hook useInsertionEffect requires an effect callback. Did you forget to pass a callback to the hook?',
-    );
+  if (__DEV__) {
+    if (create == null) {
+      console.warn(
+        'React Hook useInsertionEffect requires an effect callback. Did you forget to pass a callback to the hook?',
+      );
+    }
   }
 
   const dispatcher = resolveDispatcher();
@@ -140,10 +142,12 @@ export function useLayoutEffect(
   create: () => (() => void) | void,
   deps: Array<mixed> | void | null,
 ): void {
-  if (__DEV__ && create == null) {
-    console.warn(
-      'React Hook useLayoutEffect requires an effect callback. Did you forget to pass a callback to the hook?',
-    );
+  if (__DEV__) {
+    if (create == null) {
+      console.warn(
+        'React Hook useLayoutEffect requires an effect callback. Did you forget to pass a callback to the hook?',
+      );
+    }
   }
 
   const dispatcher = resolveDispatcher();