remove unused private method #662

Job	Run time
Verify / ubuntu-latest jdk-17-temurin 3.9.3	11m 22s
Verify / ubuntu-latest jdk-8-temurin 3.9.3	8m 10s
Verify / ubuntu-latest jdk-8-zulu 3.9.3	9m 18s
Verify / ubuntu-latest jdk-8-liberica 3.9.3	8m 9s
Verify / ubuntu-latest jdk-8-adopt-openj9 3.9.3	9m 21s
Verify / ubuntu-latest jdk-17-temurin 3.9.3	4s
Verify / ubuntu-latest jdk-17-zulu 3.9.3	10m 14s
Verify / ubuntu-latest jdk-17-microsoft 3.9.3	10m 6s
Verify / ubuntu-latest jdk-17-liberica 3.9.3	10m 17s
Verify / ubuntu-latest jdk-17-adopt-openj9 3.9.3	15m 28s
Verify / windows-latest jdk-8-temurin 3.9.3	12m 15s
Verify / windows-latest jdk-8-zulu 3.9.3	12m 2s
Verify / windows-latest jdk-8-liberica 3.9.3	12m 5s
Verify / windows-latest jdk-8-adopt-openj9 3.9.3	11m 56s
Verify / windows-latest jdk-17-temurin 3.9.3	18m 15s
Verify / windows-latest jdk-17-zulu 3.9.3	15m 6s
Verify / windows-latest jdk-17-microsoft 3.9.3	18m 46s
Verify / windows-latest jdk-17-liberica 3.9.3	15m 10s
Verify / windows-latest jdk-17-adopt-openj9 3.9.3	17m 22s
Verify / macOS-latest jdk-8-temurin 3.9.3	9m 16s
Verify / macOS-latest jdk-8-zulu 3.9.3	9m 52s
Verify / macOS-latest jdk-8-liberica 3.9.3	9m 32s
Verify / macOS-latest jdk-8-adopt-openj9 3.9.3	16m 14s
Verify / macOS-latest jdk-17-temurin 3.9.3	11m 57s
Verify / macOS-latest jdk-17-zulu 3.9.3	15m 10s
Verify / macOS-latest jdk-17-microsoft 3.9.3	12m 19s
Verify / macOS-latest jdk-17-liberica 3.9.3	16m 13s
Verify / macOS-latest jdk-17-adopt-openj9 3.9.3	20m 57s
	5h 46m 56s

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