Bundler: Remove redundant functions

Closes oss-review-toolkit#3309.

Signed-off-by: Korbinian Singhammer <external.Korbinian.Singhammer2@bosch.io>

analyzer/src/main/kotlin/managers/Bundler.kt

@@ -232,16 +232,6 @@ class Bundler(
             gemSpecs[gemspecFile.nameWithoutExtension]
         } ?: GemSpec(workingDir.name, "", "", sortedSetOf(), "", emptySet(), VcsInfo.EMPTY, RemoteArtifact.EMPTY)
 
-    private fun getGemspec(gemName: String, workingDir: File): GemSpec {
-        val spec = run(
-            "exec", "gem", "specification", gemName,
-            workingDir = workingDir,
-            environment = mapOf("BUNDLE_PATH" to "vendor/bundle")
-        ).stdout
-
-        return GemSpec.createFromYaml(spec)
-    }
-
     private fun getPackageFromGemspec(gemSpec: GemSpec): Package {
         val gemId = Identifier("Gem", "", gemSpec.name, gemSpec.version)
 
@@ -260,14 +250,6 @@ class Bundler(
     private fun getGemspecFile(workingDir: File) =
         workingDir.walk().maxDepth(1).filter { it.isFile && it.extension == "gemspec" }.firstOrNull()
 
-    private fun installDependencies(workingDir: File) {
-        requireLockfile(workingDir) { workingDir.resolve("Gemfile.lock").isFile }
-
-        // Work around "--path" being deprecated since Bundler 2.1 and avoid tampering with the ".bundle/config" file at
-        // all by using the "BUNDLER_PATH" environment variable to specify where to install the Gems to.
-        run("install", workingDir = workingDir, environment = mapOf("BUNDLE_PATH" to "vendor/bundle"))
-    }
-
     private fun queryRubygems(name: String, version: String, retryCount: Int = 3): GemSpec? {
         // See http://guides.rubygems.org/rubygems-org-api-v2/.
         val request = Request.Builder()