tools/Makefile: Remove pci target

e19bde2269ca ("selftests: Move PCI Endpoint tests from tools/pci to
Kselftests") moves tools/pci/ to tools/testing/selftests/pci_endpoint,
which causes build failure when running "make pci" under tools:

linux/tools$ make pci
DESCEND pci
make[1]: *** No targets specified and no makefile found. Stop.
make: *** [Makefile:73: pci] Error 2

Update the top level tools/Makefile to remove reference to building,
installing and cleaning pci components.

Link: https://lore.kernel.org/r/[e-mail]
Fixes: e19bde2269ca ("selftests: Move PCI Endpoint tests from tools/pci to Kselftests")
Signed-off-by: Jianfeng Liu <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>
Reviewed-by: Manivannan Sadhasivam <[e-mail]>
Signed-off-by: Krzysztof Wilczyński <[e-mail]>

tools/Makefile

···
 	@echo '  leds                   - LEDs  tools'
 	@echo '  nolibc                 - nolibc headers testing and installation'
 	@echo '  objtool                - an ELF object analysis tool'
-	@echo '  pci                    - PCI tools'
 	@echo '  perf                   - Linux performance measurement and analysis tool'
 	@echo '  selftests              - various kernel selftests'
 	@echo '  sched_ext              - sched_ext example schedulers'
···
 cpupower: FORCE
 	$(call descend,power/$@)
 
-counter firewire hv guest bootconfig spi usb virtio mm bpf iio gpio objtool leds wmi pci firmware debugging tracing: FORCE
+counter firewire hv guest bootconfig spi usb virtio mm bpf iio gpio objtool leds wmi firmware debugging tracing: FORCE
 	$(call descend,$@)
 
 bpf/%: FORCE
···
 		perf selftests bootconfig spi turbostat usb \
 		virtio mm bpf x86_energy_perf_policy \
 		tmon freefall iio objtool kvm_stat wmi \
-		pci debugging tracing thermal thermometer thermal-engine
+		debugging tracing thermal thermometer thermal-engine
 
 acpi_install:
 	$(call descend,power/$(@:_install=),install)
···
 cpupower_install:
 	$(call descend,power/$(@:_install=),install)
 
-counter_install firewire_install gpio_install hv_install iio_install perf_install bootconfig_install spi_install usb_install virtio_install mm_install bpf_install objtool_install wmi_install pci_install debugging_install tracing_install:
+counter_install firewire_install gpio_install hv_install iio_install perf_install bootconfig_install spi_install usb_install virtio_install mm_install bpf_install objtool_install wmi_install debugging_install tracing_install:
 	$(call descend,$(@:_install=),install)
 
 selftests_install:
···
 		perf_install selftests_install turbostat_install usb_install \
 		virtio_install mm_install bpf_install x86_energy_perf_policy_install \
 		tmon_install freefall_install objtool_install kvm_stat_install \
-		wmi_install pci_install debugging_install intel-speed-select_install \
+		wmi_install debugging_install intel-speed-select_install \
 		tracing_install thermometer_install thermal-engine_install
 
 acpi_clean:
···
 cpupower_clean:
 	$(call descend,power/cpupower,clean)
 
-counter_clean hv_clean firewire_clean bootconfig_clean spi_clean usb_clean virtio_clean mm_clean wmi_clean bpf_clean iio_clean gpio_clean objtool_clean leds_clean pci_clean firmware_clean debugging_clean tracing_clean:
+counter_clean hv_clean firewire_clean bootconfig_clean spi_clean usb_clean virtio_clean mm_clean wmi_clean bpf_clean iio_clean gpio_clean objtool_clean leds_clean firmware_clean debugging_clean tracing_clean:
 	$(call descend,$(@:_clean=),clean)
 
 libapi_clean:
···
 		perf_clean selftests_clean turbostat_clean bootconfig_clean spi_clean usb_clean virtio_clean \
 		mm_clean bpf_clean iio_clean x86_energy_perf_policy_clean tmon_clean \
 		freefall_clean build_clean libbpf_clean libsubcmd_clean \
-		gpio_clean objtool_clean leds_clean wmi_clean pci_clean firmware_clean debugging_clean \
+		gpio_clean objtool_clean leds_clean wmi_clean firmware_clean debugging_clean \
 		intel-speed-select_clean tracing_clean thermal_clean thermometer_clean thermal-engine_clean \
 		sched_ext_clean