diff --git a/Kernel/FileDescriptor.cpp b/Kernel/FileDescriptor.cpp
index d2b1fffcb4..17f6834ce2 100644
--- a/Kernel/FileDescriptor.cpp
+++ b/Kernel/FileDescriptor.cpp
@@ -129,10 +129,6 @@ off_t FileDescriptor::seek(off_t offset, int whence)
         break;
     case SEEK_CUR:
         newOffset = m_current_offset + offset;
-#ifndef SERENITY
-        if (additionWouldOverflow(m_currentOffset, offset))
-            return -EOVERFLOW;
-#endif
         if (newOffset < 0)
             return -EINVAL;
         break;
diff --git a/Kernel/SyntheticFileSystem.cpp b/Kernel/SyntheticFileSystem.cpp
index 1e6c90655d..56117d9843 100644
--- a/Kernel/SyntheticFileSystem.cpp
+++ b/Kernel/SyntheticFileSystem.cpp
@@ -35,12 +35,6 @@ bool SynthFS::initialize()
     root->m_metadata.size = 0;
     root->m_metadata.mtime = mepoch;
     m_inodes.set(RootInodeIndex, move(root));
-
-#ifndef SERENITY
-    addFile(createTextFile("file", String("I'm a synthetic file!\n").toByteBuffer(), 0100644));
-    addFile(createTextFile("message", String("Hey! This isn't my bottle!\n").toByteBuffer(), 0100644));
-    addFile(createGeneratedFile("lunk", [] { return String("/home/andreas/file1").toByteBuffer(); }, 00120777));
-#endif
     return true;
 }