perf: remove strict mode wrapper and react version check (#43)

Author: bocembocem

.storybook/decorators/withTheme.tsx

@@ -8,9 +8,7 @@ import '@gravity-ui/uikit/styles/styles.scss';
 import './styles.scss';
 
 export const withTheme: DecoratorFn = (Story, context) => (
-    <React.StrictMode>
-        <ThemeProvider theme={context.globals.theme}>
-            <Story {...context} />
-        </ThemeProvider>
-    </React.StrictMode>
+    <ThemeProvider theme={context.globals.theme}>
+        <Story {...context} />
+    </ThemeProvider>
 );

src/lib/core/components/Form/hooks/useField.tsx

@@ -2,7 +2,7 @@ import React from 'react';
 
 import _ from 'lodash';
 
-import {isArraySpec, isNumberSpec, isObjectSpec, isReact18OrMore} from '../../../helpers';
+import {isArraySpec, isNumberSpec, isObjectSpec} from '../../../helpers';
 import {Spec} from '../../../types';
 import {OBJECT_ARRAY_CNT, OBJECT_ARRAY_FLAG, REMOVED_ITEM} from '../constants';
 import {
@@ -255,10 +255,6 @@ export const useField = <Value extends FieldValue, SpecType extends Spec>({
         firstRenderRef.current = false;
 
         return () => {
-            if (isReact18OrMore()) {
-                firstRenderRef.current = true;
-            }
-
             (parentOnUnmount ? parentOnUnmount : tools.onUnmount)(name);
         };
     }, []);

src/lib/core/components/Form/hooks/useStore.tsx

@@ -3,7 +3,6 @@ import React from 'react';
 import _ from 'lodash';
 import {useForm} from 'react-final-form';
 
-import {isReact18OrMore} from '../../../helpers';
 import {DynamicFieldStore, FieldObjectValue, FieldValue, ValidateError} from '../types';
 import {transformArrIn} from '../utils';
 
@@ -65,12 +64,6 @@ export const useStore = (name: string) => {
 
     React.useEffect(() => {
         firstRenderRef.current = false;
-
-        return () => {
-            if (isReact18OrMore()) {
-                firstRenderRef.current = true;
-            }
-        };
     }, []);
 
     return {tools, store};

src/lib/core/helpers.ts

@@ -1,5 +1,3 @@
-import React from 'react';
-
 import _ from 'lodash';
 
 import {SpecTypes} from './constants';
@@ -29,5 +27,3 @@ export const isObjectSpec = (candidate: any): candidate is ObjectSpec =>
 
 export const isStringSpec = (candidate: any): candidate is StringSpec =>
     candidate?.type === SpecTypes.String;
-
-export const isReact18OrMore = () => Number(React.version.split('.')[0]) >= 18;