remove nightly checkbox

ui/contractVerification/fields/ContractVerificationFieldCompiler.tsx

-import { Checkbox, Code } from '@chakra-ui/react';
+import { Code } from '@chakra-ui/react';
 import { useQueryClient } from '@tanstack/react-query';
 import React from 'react';
 import type { ControllerRenderProps } from 'react-hook-form';
@@ -20,30 +20,26 @@ interface Props {
 }
 
 const ContractVerificationFieldCompiler = ({ isVyper }: Props) => {
-  const [ isNightly, setIsNightly ] = React.useState(false);
-  const { formState, control, getValues, resetField } = useFormContext<FormFields>();
+  const { formState, control } = useFormContext<FormFields>();
   const isMobile = useIsMobile();
   const queryClient = useQueryClient();
   const config = queryClient.getQueryData<SmartContractVerificationConfig>(getResourceKey('contract_verification_config'));
 
-  const handleCheckboxChange = React.useCallback(() => {
-    if (isNightly) {
-      const field = getValues('compiler');
-      field?.value.includes('nightly') && resetField('compiler', { defaultValue: null });
-    }
-    setIsNightly(prev => !prev);
-  }, [ getValues, isNightly, resetField ]);
-
   const options = React.useMemo(() => (
     (isVyper ? config?.vyper_compiler_versions : config?.solidity_compiler_versions)?.map((option) => ({ label: option, value: option })) || []
   ), [ config?.solidity_compiler_versions, config?.vyper_compiler_versions, isVyper ]);
 
   const loadOptions = React.useCallback(async(inputValue: string) => {
     return options
-      .filter(({ label }) => !inputValue || label.toLowerCase().includes(inputValue.toLowerCase()))
-      .filter(({ label }) => isNightly ? true : !label.includes('nightly'))
+      .filter(({ label }) => {
+        if (!inputValue) {
+          return !label.toLowerCase().includes('nightly');
+        }
+
+        return label.toLowerCase().includes(inputValue.toLowerCase());
+      })
       .slice(0, OPTIONS_LIMIT);
-  }, [ isNightly, options ]);
+  }, [ options ]);
 
   const renderControl = React.useCallback(({ field }: {field: ControllerRenderProps<FormFields, 'compiler'>}) => {
     const error = 'compiler' in formState.errors ? formState.errors.compiler : undefined;
@@ -65,24 +61,12 @@ const ContractVerificationFieldCompiler = ({ isVyper }: Props) => {
 
   return (
     <ContractVerificationFormRow>
-      <>
-        <Controller
-          name="compiler"
-          control={ control }
-          render={ renderControl }
-          rules={{ required: true }}
-        />
-        { !isVyper && (
-          <Checkbox
-            size="lg"
-            mt={ 3 }
-            onChange={ handleCheckboxChange }
-            isDisabled={ formState.isSubmitting }
-          >
-            Include nightly builds
-          </Checkbox>
-        ) }
-      </>
+      <Controller
+        name="compiler"
+        control={ control }
+        render={ renderControl }
+        rules={{ required: true }}
+      />
       { isVyper ? null : (
         <>
           <span>The compiler version is specified in </span>