tools/build: Remove some unused libbpf pre-1.0 feature test logic

JIRA: https://issues.redhat.com/browse/RHEL-78200

upstream
========
commit 5ae6a30
Author: Ian Rogers <irogers@google.com>
Date: Tue Jun 3 15:13:58 2025 -0700

description
===========
Commit 76a97cf ("perf build: Remove libbpf pre-1.0 feature
tests") removed the libbpf feature test logic used by perf in favor of
using LIBBPF_MAJOR_VERSION. Remove some build targets that should have
been removed as part of that clean up.

Fixes: 76a97cf ("perf build: Remove libbpf pre-1.0 feature tests")
    Signed-off-by: Ian Rogers <irogers@google.com>
    Link: https://lore.kernel.org/r/20250603221358.2562167-1-irogers@google.com
    Signed-off-by: Namhyung Kim <namhyung@kernel.org>

Signed-off-by: Anubhav Shelat <ashelat@redhat.com>

Author: AnubhavS1

tools/build/Makefile.feature

@@ -126,12 +126,6 @@ FEATURE_TESTS_EXTRA :=                  \
          llvm                           \
          clang                          \
          libbpf                         \
-         libbpf-btf__load_from_kernel_by_id \
-         libbpf-bpf_prog_load           \
-         libbpf-bpf_object__next_program \
-         libbpf-bpf_object__next_map    \
-         libbpf-bpf_program__set_insns  \
-         libbpf-bpf_create_map		\
          libpfm4                        \
          libdebuginfod			\
          clang-bpf-co-re		\

tools/build/feature/Makefile

@@ -339,27 +339,6 @@ $(OUTPUT)test-bpf.bin:
 $(OUTPUT)test-libbpf.bin:
 	$(BUILD) -lbpf
 
-$(OUTPUT)test-libbpf-btf__load_from_kernel_by_id.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_prog_load.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_map_create.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_object__next_program.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_object__next_map.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_program__set_insns.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-btf__raw_data.bin:
-	$(BUILD) -lbpf
-
 $(OUTPUT)test-sdt.bin:
 	$(BUILD)