remove unused private method (#213) #666

Job	Run time
Verify / ubuntu-latest jdk-17-temurin 3.9.3	10m 57s
Verify / ubuntu-latest jdk-8-temurin 3.9.3	7m 28s
Verify / ubuntu-latest jdk-8-zulu 3.9.3	7m 54s
Verify / ubuntu-latest jdk-8-liberica 3.9.3	9m 52s
Verify / ubuntu-latest jdk-8-adopt-openj9 3.9.3	8m 0s
Verify / ubuntu-latest jdk-17-temurin 3.9.3	3s
Verify / ubuntu-latest jdk-17-zulu 3.9.3	13m 32s
Verify / ubuntu-latest jdk-17-microsoft 3.9.3	11m 27s
Verify / ubuntu-latest jdk-17-liberica 3.9.3	10m 15s
Verify / ubuntu-latest jdk-17-adopt-openj9 3.9.3	12m 39s
Verify / windows-latest jdk-8-temurin 3.9.3	12m 47s
Verify / windows-latest jdk-8-zulu 3.9.3	11m 45s
Verify / windows-latest jdk-8-liberica 3.9.3	11m 13s
Verify / windows-latest jdk-8-adopt-openj9 3.9.3	11m 22s
Verify / windows-latest jdk-17-temurin 3.9.3	16m 19s
Verify / windows-latest jdk-17-zulu 3.9.3	15m 36s
Verify / windows-latest jdk-17-microsoft 3.9.3	17m 10s
Verify / windows-latest jdk-17-liberica 3.9.3	17m 24s
Verify / windows-latest jdk-17-adopt-openj9 3.9.3	19m 29s
Verify / macOS-latest jdk-8-temurin 3.9.3	11m 24s
Verify / macOS-latest jdk-8-zulu 3.9.3	10m 43s
Verify / macOS-latest jdk-8-liberica 3.9.3	9m 41s
Verify / macOS-latest jdk-8-adopt-openj9 3.9.3	15m 32s
Verify / macOS-latest jdk-17-temurin 3.9.3	17m 38s
Verify / macOS-latest jdk-17-zulu 3.9.3	16m 22s
Verify / macOS-latest jdk-17-microsoft 3.9.3	15m 0s
Verify / macOS-latest jdk-17-liberica 3.9.3	13m 38s
Verify / macOS-latest jdk-17-adopt-openj9 3.9.3	18m 54s
	5h 54m 4s

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