diff --git a/.drone.yml b/.drone.yml
index bbeb85df92..70c5f246a6 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -4,7 +4,7 @@ build:
     commands:
       - ./autotest-js.sh
   nodb-php5.6:
-    image: nextcloudci/php5.6:1.0.6
+    image: nextcloudci/php5.6:php5.6-1
     commands:
       - rm -rf data/* config/config.php # TODO: remove this - temporary fix for CI issues
       - git submodule update --init
diff --git a/lib/private/LargeFileHelper.php b/lib/private/LargeFileHelper.php
index f89d3216a3..9d0fe86403 100644
--- a/lib/private/LargeFileHelper.php
+++ b/lib/private/LargeFileHelper.php
@@ -137,23 +137,6 @@ class LargeFileHelper {
 		return null;
 	}
 
-	/**
-	* @brief Tries to get the size of a file via the Windows DOM extension.
-	*
-	* @param string $filename Path to the file.
-	*
-	* @return null|int|float Number of bytes as number (float or int) or
-	*                        null on failure.
-	*/
-	public function getFileSizeViaCOM($filename) {
-		if (class_exists('COM')) {
-			$fsObj = new \COM("Scripting.FileSystemObject");
-			$file = $fsObj->GetFile($filename);
-			return 0 + $file->Size;
-		}
-		return null;
-	}
-
 	/**
 	* @brief Tries to get the size of a file via an exec() call.
 	*
diff --git a/tests/lib/LargeFileHelperGetFileSizeTest.php b/tests/lib/LargeFileHelperGetFileSizeTest.php
index 0c3a11e971..b2735d7f61 100644
--- a/tests/lib/LargeFileHelperGetFileSizeTest.php
+++ b/tests/lib/LargeFileHelperGetFileSizeTest.php
@@ -54,21 +54,6 @@ class LargeFileHelperGetFileSizeTest extends TestCase {
 		);
 	}
 
-	/**
-	 * @dataProvider dataFileNameProvider
-	 */
-	public function testGetFileSizeViaCOM($filename, $fileSize) {
-		if (!extension_loaded('COM')) {
-			$this->markTestSkipped(
-				'The PHP Windows COM extension is required for this test.'
-			);
-		}
-		$this->assertSame(
-			$fileSize,
-			$this->helper->getFileSizeViaCOM($filename)
-		);
-	}
-
 	/**
 	 * @dataProvider dataFileNameProvider
 	 */