remove 6.18.0 install files

linux-tom-6.18.arch1-1-x86_64.pkg.tar.zst

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:35dd437fac4510a047d8447bfcfc1bf56631def4a2fb50f44f62be78344ff3ea
-size 2039886102

linux-tom-docs-6.18.arch1-1-x86_64.pkg.tar.zst

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:27aaad36be6fdddcea63a0bdb8b864a8b29894a105c6b1f57b12c7595a8a8d69
-size 46431138

linux-tom-headers-6.18.arch1-1-x86_64.pkg.tar.zst

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:429a3dea02672471753bc201a34d6c1dbb95092ff81d83f4e4cdd1a41010428e
-size 72419185