Remove HIDAPI Autotools build system and unused files

Externals/hidapi/mac/.gitignore

@@ -1,17 +0,0 @@
-Debug
-Release
-*.exp
-*.ilk
-*.lib
-*.suo
-*.vcproj.*
-*.ncb
-*.suo
-*.dll
-*.pdb
-*.o
-hidapi-hidtest
-.deps
-.libs
-*.la
-*.lo

Externals/hidapi/mac/Makefile-manual

@@ -1,32 +0,0 @@
-###########################################
-# Simple Makefile for HIDAPI test program
-#
-# Alan Ott
-# Signal 11 Software
-# 2010-07-03
-###########################################
-
-all: hidtest
-
-CC=gcc
-CXX=g++
-COBJS=hid.o
-CPPOBJS=../hidtest/hidtest.o
-OBJS=$(COBJS) $(CPPOBJS)
-CFLAGS+=-I../hidapi -Wall -g -c 
-LIBS=-framework IOKit -framework CoreFoundation
-
-
-hidtest: $(OBJS)
-	g++ -Wall -g $^ $(LIBS) -o hidtest
-
-$(COBJS): %.o: %.c
-	$(CC) $(CFLAGS) $< -o $@
-
-$(CPPOBJS): %.o: %.cpp
-	$(CXX) $(CFLAGS) $< -o $@
-
-clean:
-	rm -f *.o hidtest $(CPPOBJS)
-
-.PHONY: clean

Externals/hidapi/mac/Makefile.am

@@ -1,9 +0,0 @@
-lib_LTLIBRARIES = libhidapi.la
-libhidapi_la_SOURCES = hid.c
-libhidapi_la_LDFLAGS = $(LTLDFLAGS)
-AM_CPPFLAGS = -I$(top_srcdir)/hidapi/
-
-hdrdir = $(includedir)/hidapi
-hdr_HEADERS = $(top_srcdir)/hidapi/hidapi.h
-
-EXTRA_DIST = Makefile-manual