SharedExerciseHelper => Remove unnecessary function

helpers/Dojo/SharedExerciseHelper.ts

-import Ajv, { ErrorObject, JTDSchemaType } from 'ajv/dist/jtd';
-import fs                                  from 'fs';
-import ExerciseResultsFile                 from '../../types/Dojo/ExerciseResultsFile';
-import JSON5                               from 'json5';
-
-
-class SharedExerciseHelper {
-    validateResultFile(resultsFilePathOrStr: string, isFile: boolean = true): { results: ExerciseResultsFile | undefined, isValid: boolean, errors: Array<ErrorObject | string> | null | undefined } {
-        const ajv = new Ajv();
-
-        const schema: JTDSchemaType<ExerciseResultsFile> = {
-            properties          : {},
-            optionalProperties  : {
-                success: { type: 'boolean' },
-
-                containerExitCode: { type: 'uint32' },
-
-                successfulTests: { type: 'uint32' },
-                failedTests    : { type: 'uint32' },
-
-                successfulTestsList: {
-                    elements: {
-                        type: 'string'
-                    }
-                },
-                failedTestsList    : {
-                    elements: {
-                        type: 'string'
-                    }
-                }
-            },
-            additionalProperties: false
-        };
-
-        const validator = ajv.compile(schema);
-
-        try {
-            const results = JSON5.parse(isFile ? fs.readFileSync(resultsFilePathOrStr, 'utf8') : resultsFilePathOrStr);
-            const isValid = validator(results);
-
-            if ( isValid ) {
-                if ( results.successfulTests === undefined && results.successfulTestsList !== undefined ) {
-                    results.successfulTests = results.successfulTestsList.length;
-                }
-
-                if ( results.failedTests === undefined && results.failedTestsList !== undefined ) {
-                    results.failedTests = results.failedTestsList.length;
-                }
-            }
-
-            return {
-                results: isValid ? results : results as ExerciseResultsFile,
-                isValid: isValid,
-                errors : validator.errors
-            };
-        } catch ( error ) {
-            return {
-                results: undefined,
-                isValid: false,
-                errors : [ `JSON5 invalid : ${ JSON.stringify(error) }` ]
-            };
-        }
-    }
-}
+class SharedExerciseHelper {}
 
 
 export default new SharedExerciseHelper();
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