tcg/plugins: remove some stale entries from the symbol list

The OSX linker is a lot fussier about these missing symbols.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210714101623.17046-1-alex.bennee@linaro.org>

plugins/qemu-plugins.symbols

@@ -8,9 +8,7 @@
   qemu_plugin_register_vcpu_insn_exec_cb;
   qemu_plugin_register_vcpu_insn_exec_inline;
   qemu_plugin_register_vcpu_mem_cb;
-  qemu_plugin_register_vcpu_mem_haddr_cb;
   qemu_plugin_register_vcpu_mem_inline;
-  qemu_plugin_ram_addr_from_host;
   qemu_plugin_register_vcpu_tb_trans_cb;
   qemu_plugin_register_vcpu_tb_exec_cb;
   qemu_plugin_register_vcpu_tb_exec_inline;
@@ -32,7 +30,6 @@
   qemu_plugin_mem_is_store;
   qemu_plugin_get_hwaddr;
   qemu_plugin_hwaddr_is_io;
-  qemu_plugin_hwaddr_to_raddr;
   qemu_plugin_vcpu_for_each;
   qemu_plugin_n_vcpus;
   qemu_plugin_n_max_vcpus;