Remove unused variable

Copybara Import from https://github.com/bazelbuild/rules_cc/pull/737

BEGIN_PUBLIC
Remove unused variable (#737)

Closes #737
END_PUBLIC

COPYBARA_INTEGRATE_REVIEW=https://github.com/bazelbuild/rules_cc/pull/737 from keith:ks/remove-unused-variable 8a1c4b3fea8d81651ba1a6f78114168bc41d58e7
PiperOrigin-RevId: 941749895
Change-Id: Id94d46bdd2cb5f9baf2ce6cfa4bc548f83572381

cc/private/rules_impl/cc_shared_library_impl.bzl

diff --git a/cc/private/rules_impl/cc_shared_library_impl.bzl b/cc/private/rules_impl/cc_shared_library_impl.bzl
index 905c52a..f5d3d0b 100644
--- a/cc/private/rules_impl/cc_shared_library_impl.bzl
+++ b/cc/private/rules_impl/cc_shared_library_impl.bzl
@@ -407,10 +407,8 @@
     linker_inputs_seen = {}
     linker_inputs_count = 0
     label_to_linker_inputs = {}
-    experimental_remove_before_7_0_linker_inputs = []
 
     def _add_linker_input_to_dict(owner, linker_input):
-        experimental_remove_before_7_0_linker_inputs.append(linker_input)
         label_to_linker_inputs.setdefault(owner, []).append(linker_input)
 
     # We use this dictionary to give an error if a target containing only