[json11] Modifying it as needed for compilation in Ubuntu 26.04

Author: Murilo Marinho

debian/rules

@@ -10,15 +10,6 @@ build-indep:
 	# nothing to be done
 
 build-arch:
-ifeq ($(CI),)
-	echo "Not CI, hopefully launchpad. Cloning submodules manually..."
-	rm -rf dropbox/{*,.*}
-	rm -rf dropbox
-	mkdir -p dropbox/json11
-	git clone https://git.launchpad.net/~dqrobotics-dev/dqrobotics/+git/dropbox-json11 dropbox/json11
-else
-	echo "CI detected, skipping manual submodule load"
-endif
 	mkdir -p $(BUILDDIR);
 	cd $(BUILDDIR); cmake -DCMAKE_CXX_FLAGS="-fdebug-prefix-map=$(shell pwd)/src/=/usr/src/ -fdebug-prefix-map=$(shell pwd)/include/=/usr/include/" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_INSTALL_PREFIX=../debian/tmp/usr ..
 	make -C $(BUILDDIR)