Remove ISO build tooling (deferred to later)

README.md

@@ -15,8 +15,7 @@ depends on live in their own repositories:
 Every package on Keru is built from source by **Kama**, a deliberately small
 package manager that simply runs the commands in each recipe. No binary
 packages, no opaque package machinery. The whole system — toolchain included —
-is compiled from original source, and the install image is assembled by hand
-rather than with a stock tool like archiso.
+is compiled from original source.
 
 Runit handles services. The standard Linux kernel drives the hardware.
 `nmtui` manages networking. Nothing you didn't ask for ends up on the disk.
@@ -38,10 +37,11 @@ disk is precisely the one you chose.
 
 ```
 installer/     TUI installer — writes make.conf from your choices
-iso/           from-scratch ISO build tooling (xorriso + squashfs + syslinux)
 profile/       make.conf template (the swappables + build flags)
 scripts/       build pipeline: build-root, mkfs-root, common helpers
 docs/          design docs + the recipe format spec
+
+(ISO build tooling is not in this repo yet — coming later.)
 ```
 
 ## Building
@@ -62,7 +62,6 @@ Then, from `KeruOS/`:
 make install       # run the TUI installer
 # or, headlessly:
 sh scripts/build-root.sh            # build a rootfs into /tmp/keru/root
-make iso                            # assemble an install image
 ```
 
 Requires the sibling `kama` and `kama-packages` repos to be present.