Disable tests who fail because they have to run as root.

--- libusb-0.1.12/tests/Makefile.in	2006-03-04 03:54:06.000000000 +0100
+++ libusb-0.1.12/tests/Makefile.in	2017-07-13 16:17:45.201728019 +0200
@@ -255,8 +255,8 @@
 hub_strings_LDADD = $(top_builddir)/libusbpp.la @OSLIBS@
 driver_name_SOURCES = driver_name.cpp
 driver_name_LDADD = $(top_builddir)/libusbpp.la @OSLIBS@
-TESTS = testlibusb descriptor_test id_test find_hubs find_mice \
-		get_resolution hub_strings $(OS_SPECIFIC)
+TESTS = testlibusb descriptor_test id_test find_hubs find_mice
+		#get_resolution hub_strings $(OS_SPECIFIC)
 
 XFAIL_TESTS = get_resolution hub_strings $(OS_SPECIFIC_XFAIL)
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<tr><td><span title='2020-04-14 07:07:04 +0200'>2020-04-14</span></td><td><a href='/guix/commit/gnu/packages/kawa.scm?id=c206b8398541d052d506c57f627c5c3c7d26686b'>gnu: kawa: Update to 3.1.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/kawa.scm (kawa): Update to 3.1.1.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-04-14 07:07:04 +0200'>2020-04-14</span></td><td><a href='/guix/commit/gnu/packages/kawa.scm?id=ea607b355169158fefa796cabb3add66aac7301d'>gnu: kawa: Wrap to find java.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/kawa.scm (kawa)[arguments]: Add ‘wrap-kawa’ phase to set JAVA_HOME.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>