[Build] Do not add ij dependencies in testApiJUnit5

This is not needed since the dependencies are already declared as API dependencies in the relevant projects.
#KTI-1349 In Progress

compiler/tests-common-new/build.gradle.kts

@@ -33,7 +33,8 @@ dependencies {
     testApi(commonDependency("org.jetbrains.intellij.deps.jna:jna"))
     testApi(jpsModel()) { isTransitive = false }
     testApi(jpsModelImpl()) { isTransitive = false }
-    testApi(intellijJavaRt())
+    testApi(intellijJavaRt()) // for FileComparisonFailure
+    testApi(libs.junit4) // for ComparisonFailure
 
     testApi(toolsJar())
 }

compiler/tests-common/build.gradle.kts

@@ -53,7 +53,7 @@ dependencies {
     testApi(project(":kotlin-test:kotlin-test-jvm"))
     testApi(project(":kotlin-scripting-compiler-impl"))
     testApi(projectTests(":compiler:test-infrastructure-utils"))
-    testApi(libs.junit4)
+    testApi(libs.junit4) // for ComparisonFailure
     testApi(commonDependency("com.android.tools:r8"))
     testApi(project(":analysis:analysis-internal-utils"))
     testCompileOnly(commonDependency("org.jetbrains.kotlin:kotlin-reflect")) { isTransitive = false }
@@ -73,7 +73,7 @@ dependencies {
 
     testApi(jpsModel()) { isTransitive = false }
     testApi(jpsModelImpl()) { isTransitive = false }
-    testApi(intellijJavaRt())
+    testApi(intellijJavaRt()) // for FileComparisonFailure
 
     testImplementation(libs.guava)
     testImplementation(commonDependency("org.jetbrains.intellij.deps:trove4j"))

repo/gradle-build-conventions/buildsrc-compat/src/main/kotlin/repoDependencies.kt

@@ -232,12 +232,6 @@ fun Project.testApiJUnit5(
                 libsVersionCatalog.findLibrary("junit-platform-suite-api")
                     .orElseThrow { GradleException("No version for `junit-platform-suite-api`") })
         }
-
-        // This dependency is needed only for FileComparisonFailure
-        testImplementation(intellijJavaRt())
-
-        // This is needed only for using FileComparisonFailure, which relies on JUnit 3 classes
-        testRuntimeOnly(libsVersionCatalog.findLibrary("junit4").orElseThrow { GradleException("No version for `junit4`") })
     }
 }