build: don't install test binary

Author: fjebaker

build.zig

@@ -47,7 +47,4 @@ pub fn build(b: *std.Build) void {
     const run_unit_tests = b.addRunArtifact(unit_tests);
     const test_step = b.step("test", "Run unit tests");
     test_step.dependOn(&run_unit_tests.step);
-
-    const install_test = b.addInstallArtifact(unit_tests, .{});
-    b.getInstallStep().dependOn(&install_test.step);
 }