Let rake be responsible for templates

* In CRuby the template files are committed,
  and this Makefile is not used, instead common.mk is used.

Makefile.in

@@ -14,7 +14,7 @@ CPPFLAGS := @DEFS@ -Iinclude
 CFLAGS := @CFLAGS@ -std=c99 -Wall -Werror -Wextra -Wpedantic -Wundef -Wsign-conversion -fPIC -fvisibility=hidden
 CC := @CC@
 
-HEADERS := $(shell find include -name '*.h') include/yarp/ast.h
+HEADERS := $(shell find include -name '*.h')
 SOURCES := $(shell find src -name '*.c')
 SHARED_OBJECTS := $(subst src/,build/shared/,$(SOURCES:.c=.o))
 STATIC_OBJECTS := $(subst src/,build/static/,$(SOURCES:.c=.o))
@@ -42,22 +42,10 @@ build/static/%.o: src/%.c Makefile $(HEADERS)
 	$(Q) mkdir -p $(@D)
 	$(Q) $(CC) $(DEBUG_FLAGS) -DYP_STATIC $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
 
-include/yarp/ast.h: templates/include/yarp/ast.h.erb
-	$(ECHO) "generating $@"
-	$(Q) rake $@
-
 clean:
 	$(Q) rm -f -r build
 
-clobber: clean
-	$(Q) rm -f \
-		ext/yarp/api_node.c \
-		include/yarp/ast.h \
-		java/org/yarp/{AbstractNodeVisitor.java,Loader.java,Nodes.java} \
-		lib/yarp/{node,serialize}.rb \
-		src/{node.c,prettyprint.c,serialize.c,token_type.c}
-
-.PHONY: clean clobber
+.PHONY: clean
 
 all-no-debug: DEBUG_FLAGS := -DNDEBUG=1
 all-no-debug: OPTFLAGS := -O3