build-unit-test-docker: remove fifo_map

No code and no recipes currently depend on fifo_map.  Remove it from
our Docker unit-test container.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ib211629376ed4e108248c57d1bf32c77e21818fc
diff --git a/scripts/build-unit-test-docker b/scripts/build-unit-test-docker
index 2a3bed7..641f6b4 100755
--- a/scripts/build-unit-test-docker
+++ b/scripts/build-unit-test-docker
@@ -199,12 +199,6 @@
             "-Dvalijson_INSTALL_HEADERS=1",
         ],
     ),
-    # version from meta-openembedded/meta-oe/recipes-devtools/nlohmann-fifo/nlohmann-fifo_git.bb
-    "nlohmann/fifo_map": PackageDef(
-        rev="0dfbf5dacbb15a32c43f912a7e66a54aae39d0f9",
-        build_type="custom",
-        build_steps=[f"cp src/fifo_map.hpp {prefix}/include/"],
-    ),
     # version from meta-openembedded/meta-oe/recipes-devtools/unifex/unifex_git.bb
     "facebookexperimental/libunifex": PackageDef(
         rev="9df21c58d34ce8a1cd3b15c3a7347495e29417a0",
@@ -232,7 +226,6 @@
     "openbmc/phosphor-logging": PackageDef(
         depends=[
             "USCiLab/cereal",
-            "nlohmann/fifo_map",
             "openbmc/phosphor-dbus-interfaces",
             "openbmc/sdbusplus",
             "openbmc/sdeventplus",