Simplify Makefile and ci-checks (#2026)

Makefile

@@ -13,32 +13,27 @@ MARKDOWN_TOC=./node_modules/.bin/markdown-toc
 # Keep links in semantic_conventions/README.md and .vscode/settings.json in sync!
 SEMCONVGEN_VERSION=0.7.0
 
-.PHONY: install-misspell
-install-misspell:
-    # TODO: Check for existence before installing
+$(MISSPELL):
 	cd $(TOOLS_DIR) && go build -o $(MISSPELL_BINARY) github.com/client9/misspell/cmd/misspell
 
 .PHONY: misspell
-misspell:
+misspell:	$(MISSPELL)
 	$(MISSPELL) -error $(ALL_DOCS)
 
 .PHONY: misspell-correction
-misspell-correction:
+misspell-correction:	$(MISSPELL)
 	$(MISSPELL) -w $(ALL_DOCS)
 
-.PHONY: install-markdown-link-check
-install-markdown-link-check:
+$(MARKDOWN_LINK_CHECK):
 	npm install markdown-link-check
 
 .PHONY: markdown-link-check
-markdown-link-check:
+markdown-link-check:	$(MARKDOWN_LINK_CHECK)
 	@for f in $(ALL_DOCS); do $(MARKDOWN_LINK_CHECK) --quiet --config .markdown_link_check_config.json $$f; done
 
-.PHONY: install-markdown-toc
-install-markdown-toc:
+$(MARKDOWN_TOC):
 	npm install markdown-toc
 
-.PHONY: markdown-toc
 # This target runs markdown-toc on all files that contain
 # a comment <!-- tocstop -->.
 #
@@ -48,7 +43,8 @@ install-markdown-toc:
 #   <!-- Re-generate TOC with `make markdown-toc` -->
 #   <!-- toc -->
 #   <!-- tocstop -->
-markdown-toc:
+.PHONY: markdown-toc
+markdown-toc:	$(MARKDOWN_TOC)
 	@for f in $(ALL_DOCS); do \
 		if grep -q '<!-- tocstop -->' $$f; then \
 			echo markdown-toc: processing $$f; \
@@ -58,12 +54,11 @@ markdown-toc:
 		fi; \
 	done
 
-.PHONY: install-markdownlint
-install-markdownlint:
+$(MARKDOWN_LINT):
 	npm install markdownlint-cli
 
 .PHONY: markdownlint
-markdownlint:
+markdownlint:	$(MARKDOWN_LINT)
 	@for f in $(ALL_DOCS); do echo $$f; $(MARKDOWN_LINT) -c .markdownlint.yaml $$f || exit 1;	done
 
 .PHONY: install-yamllint
@@ -103,5 +98,5 @@ fix: table-generation misspell-correction
 
 # Attempt to install all the tools
 .PHONY: install-tools
-install-tools: install-misspell install-markdownlint install-markdown-link-check install-markdown-toc
+install-tools: $(MISSPELL) $(MARKDOWN_LINT) $(MARKDOWN_LINK_CHECK) $(MARKDOWN_TOC)
 	@echo "All tools installed"