Remove redundant method

Author: stephan-gh

build.gradle

@@ -12,7 +12,7 @@ plugins {
 }
 
 group = 'net.minecrell'
-version = '0.4'
+version = '0.5-SNAPSHOT'
 description = 'A Gradle plugin to manage patches for Git repositories'
 
 sourceCompatibility = 1.6

src/main/groovy/net/minecrell/gitpatcher/task/patch/ApplyPatchesTask.groovy

@@ -124,8 +124,4 @@ class ApplyPatchesTask extends PatchTask {
         }
     }
 
-    private static void exec(List<String> command, File workingDir) {
-        command.execute(null as String[], workingDir).consumeProcessOutput()
-    }
-
 }