Exclude jacocoagent from boot jars package check

This replicates the previous behavior when the boot jars package check
was performed by a singleton. When the singleton was removed and the
check was performed by the platform-bootclasspath the logic to exclude
jacocoagent from the list was lost. This change replaces it.

Bug: 191377804
Test: m EMMA_INSTRUMENT=true EMMA_INSTRUMENT_FRAMEWORK=true check-boot-jars
      - fails without this change passes with this change.
Change-Id: If9eae254045bef9a0c0963213721fc12a9f463cb
diff --git a/java/hiddenapi_modular.go b/java/hiddenapi_modular.go
index 60300af..de72b39 100644
--- a/java/hiddenapi_modular.go
+++ b/java/hiddenapi_modular.go
@@ -589,6 +589,19 @@
 	return paths
 }
 
+// bootDexJarsWithoutCoverage returns the boot dex jar paths sorted by their keys without coverage
+// libraries if present.
+func (b bootDexJarByModule) bootDexJarsWithoutCoverage() android.Paths {
+	paths := android.Paths{}
+	for _, k := range android.SortedStringKeys(b) {
+		if k == "jacocoagent" {
+			continue
+		}
+		paths = append(paths, b[k])
+	}
+	return paths
+}
+
 // HiddenAPIOutput encapsulates the output from the hidden API processing.
 type HiddenAPIOutput struct {
 	HiddenAPIFlagOutput