fix zh-CN translation

[prezha]

looks like there were additional fileds added unintentionally in pr #19508, which makes the tests fail

@uos-ljtian can you please check and confirm

before

go test ./pkg/minikube/translate -run TestTranslationFilesValid -v

=== RUN   TestTranslationFilesValid
=== RUN   TestTranslationFilesValid/de.json
=== RUN   TestTranslationFilesValid/es.json
=== RUN   TestTranslationFilesValid/fr.json
=== RUN   TestTranslationFilesValid/ja.json
=== RUN   TestTranslationFilesValid/ko.json
=== RUN   TestTranslationFilesValid/pl.json
=== RUN   TestTranslationFilesValid/ru.json
=== RUN   TestTranslationFilesValid/zh-CN.json
    translate_test.go:117: line "Current context is \"{{.context}}\"": "当前的上下文为 \"{{.context}}\"创建 {{.driver_name}} {{.machine_type}}（CPU={{if not .number_of_cpus}}无限制{{else}}{{.number_of_cpus}}{{end}}，内存={{if not .memory_size}}无限制{{else}}{{.memory_size}}MB{{end}}）..." has mismatching number of variables
        original string variables: [{{.context}}]; translated variables: [{{.context}} {{.driver_name}} {{.machine_type}} {{.memory_size}} {{.number_of_cpus}}]
--- FAIL: TestTranslationFilesValid (0.12s)
    --- PASS: TestTranslationFilesValid/de.json (0.01s)
    --- PASS: TestTranslationFilesValid/es.json (0.01s)
    --- PASS: TestTranslationFilesValid/fr.json (0.04s)
    --- PASS: TestTranslationFilesValid/ja.json (0.03s)
    --- PASS: TestTranslationFilesValid/ko.json (0.01s)
    --- PASS: TestTranslationFilesValid/pl.json (0.00s)
    --- PASS: TestTranslationFilesValid/ru.json (0.00s)
    --- FAIL: TestTranslationFilesValid/zh-CN.json (0.01s)
FAIL
FAIL	k8s.io/minikube/pkg/minikube/translate	0.129s
FAIL

after

go test ./pkg/minikube/translate -run TestTranslationFilesValid -v

=== RUN   TestTranslationFilesValid
=== RUN   TestTranslationFilesValid/de.json
=== RUN   TestTranslationFilesValid/es.json
=== RUN   TestTranslationFilesValid/fr.json
=== RUN   TestTranslationFilesValid/ja.json
=== RUN   TestTranslationFilesValid/ko.json
=== RUN   TestTranslationFilesValid/pl.json
=== RUN   TestTranslationFilesValid/ru.json
=== RUN   TestTranslationFilesValid/zh-CN.json
--- PASS: TestTranslationFilesValid (0.11s)
    --- PASS: TestTranslationFilesValid/de.json (0.02s)
    --- PASS: TestTranslationFilesValid/es.json (0.01s)
    --- PASS: TestTranslationFilesValid/fr.json (0.04s)
    --- PASS: TestTranslationFilesValid/ja.json (0.02s)
    --- PASS: TestTranslationFilesValid/ko.json (0.01s)
    --- PASS: TestTranslationFilesValid/pl.json (0.01s)
    --- PASS: TestTranslationFilesValid/ru.json (0.00s)
    --- PASS: TestTranslationFilesValid/zh-CN.json (0.01s)
PASS
ok  	k8s.io/minikube/pkg/minikube/translate	0.122s

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This pull-request has been approved by: prezha

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[prezha]

@spowelljr was faster ;)
closing this one as duplicate of #19718