blackbox: remove unneeded patch

packages/blackbox/Makefile.patch

@@ -1,23 +0,0 @@
---- blackbox-1.20181219/Makefile	2018-12-20 01:20:19.000000000 +0600
-+++ blackbox-1.20181219-mod/Makefile	2020-02-29 01:04:51.748485748 +0600
-@@ -14,7 +14,7 @@
- 	@echo '  make usrlocal-uninstall Remove blackbox files from /usr/local/bin/'
- 	@echo '  make test               Run tests'
- 
--install:
-+copy-install:
- 	@echo 'To install, copy the files from bin to somewhere in your PATH.'
- 	@echo 'The README.md document gives more details.'
- 	@echo 'Or run "make" (with no options) for more info.'
-@@ -66,9 +66,9 @@
- 	@echo '***************************************************************'
- 	$(MAKE) symlinks-install
- 
--copy-install:
-+install:
- 	@echo 'Copying files from ./bin to /usr/local/bin'
--	@cd bin && for f in `find . -type f -iname "*" ! -iname "Makefile"`; do cp `pwd`/$$f /usr/local/bin/$$f; done
-+	@cd bin && for f in `find . -type f -iname "*" ! -iname "Makefile"`; do cp `pwd`/$$f @TERMUX_PREFIX@/bin/$$f; done
- 	@echo 'Done.'
- 
- usrlocal-uninstall:

packages/blackbox/build.sh

@@ -9,3 +9,4 @@ TERMUX_PKG_DEPENDS="gnupg"
 TERMUX_PKG_SUGGESTS="git, subversion"
 TERMUX_PKG_PLATFORM_INDEPENDENT=true
 TERMUX_PKG_BUILD_IN_SRC=true
+TERMUX_PKG_MAKE_INSTALL_TARGET="copy-install"