[test] Remove redundant lit feature 'swift-autolink-extract'.

We already have a perfectly good 'autolink-extract'.

Author: jrose-apple

test/Driver/linker-autolink-extract.swift

@@ -1,6 +1,6 @@
 // RUN: %swiftc_driver -driver-print-jobs -target x86_64-unknown-linux-gnu -g %s | FileCheck -check-prefix DEBUG_LINUX %s
 
-// REQUIRES: swift-autolink-extract
+// REQUIRES: autolink-extract
 
 // DEBUG_LINUX: bin/swift
 // DEBUG_LINUX-NEXT: bin/swift-autolink-extract

test/lit.cfg

@@ -222,7 +222,6 @@ config.inferSwiftBinary = inferSwiftBinary
 
 config.swift = inferSwiftBinary('swift')
 config.swiftc = inferSwiftBinary('swiftc')
-config.swift_autolink_extract = inferSwiftBinary('swift-autolink-extract')
 config.sil_opt = inferSwiftBinary('sil-opt')
 config.sil_extract = inferSwiftBinary('sil-extract')
 config.lldb_moduleimport_test = inferSwiftBinary('lldb-moduleimport-test')
@@ -234,9 +233,6 @@ config.swift_llvm_opt = inferSwiftBinary('swift-llvm-opt')
 config.gyb = os.path.join(config.swift_src_root, 'utils', 'gyb')
 config.swift_lib_dir = os.path.join(os.path.dirname(os.path.dirname(config.swift)), 'lib')
 
-if os.path.isabs(config.swift_autolink_extract):
-    config.available_features.add('swift-autolink-extract')
-
 # Find the resource directory.  Assume it's near the swift compiler if not set.
 test_resource_dir = lit_config.params.get('test_resource_dir')
 if test_resource_dir: