Remove libs/smmstore

Replace the stand-alone smmstore app in favor of the read example in
firmware-smmstore.

Signed-off-by: Tim Crawford <tcrawford@system76.com>

.gitmodules

@@ -82,10 +82,6 @@
 	path = FSP
 	url = https://github.com/IntelFsp/FSP.git
 	branch = master
-[submodule "libs/smmstore"]
-	path = libs/smmstore
-	url = https://github.com/system76/smmstore.git
-	branch = master
 [submodule "apps/firmware-smmstore"]
 	path = apps/firmware-smmstore
 	url = https://github.com/system76/firmware-smmstore.git

scripts/smmstore.sh

@@ -8,5 +8,5 @@ sudo ./libs/intel-spi/target/release/examples/read
 make -C coreboot/util/cbfstool -j "$(nproc)"
 ./coreboot/util/cbfstool/cbfstool read.rom read -r SMMSTORE -f smmstore.rom 
 
-cargo build --manifest-path libs/smmstore/Cargo.toml --release
-./libs/smmstore/target/release/smmstore smmstore.rom
+cargo build --manifest-path apps/firmware-smmstore/Cargo.toml --example read --release
+./apps/firmware-smmstore/target/release/examples/read