chore: remove unnecessary target from makefile (#4702)

Makefile

@@ -209,11 +209,13 @@ endif
 
 run_cli: install_frontend install_backend build_frontend ## run the CLI
 	@echo 'Running the CLI'
-ifdef env
-	@make start env=$(env) host=$(host) port=$(port) log_level=$(log_level)
-else
-	@make start host=$(host) port=$(port) log_level=$(log_level)
-endif
+	@uv run langflow run \
+		--frontend-path $(path) \
+		--log-level $(log_level) \
+		--host $(host) \
+		--port $(port) \
+		$(if $(env),--env-file $(env),) \
+		$(if $(filter false,$(open_browser)),--no-open-browser)
 
 run_cli_debug:
 	@echo 'Running the CLI in debug mode'
@@ -228,25 +230,6 @@ else
 	@make start host=$(host) port=$(port) log_level=debug
 endif
 
-start:
-	@echo 'Running the CLI'
-
-ifeq ($(open_browser),false)
-	@make install_backend && uv run langflow run \
-		--frontend-path $(path) \
-		--log-level $(log_level) \
-		--host $(host) \
-		--port $(port) \
-		--env-file $(env) \
-		--no-open-browser
-else
-	@make install_backend && uv run langflow run \
-		--frontend-path $(path) \
-		--log-level $(log_level) \
-		--host $(host) \
-		--port $(port) \
-		--env-file $(env)
-endif
 
 setup_devcontainer: ## set up the development container
 	make install_backend