depends, libevent: Do not install *.pc files and remove patches for them

depends/packages/libevent.mk

@@ -4,7 +4,6 @@ $(package)_download_path=https://github.com/libevent/libevent/releases/download/
 $(package)_file_name=$(package)-$($(package)_version).tar.gz
 $(package)_sha256_hash=92e6de1be9ec176428fd2367677e61ceffc2ee1cb119035037a27d346b0403bb
 $(package)_patches=cmake_fixups.patch
-$(package)_patches+=fix_mingw_link.patch
 $(package)_build_subdir=build
 
 # When building for Windows, we set _WIN32_WINNT to target the same Windows
@@ -23,8 +22,7 @@ define $(package)_set_vars
 endef
 
 define $(package)_preprocess_cmds
-  patch -p1 < $($(package)_patch_dir)/cmake_fixups.patch && \
-  patch -p1 < $($(package)_patch_dir)/fix_mingw_link.patch
+  patch -p1 < $($(package)_patch_dir)/cmake_fixups.patch
 endef
 
 define $(package)_config_cmds
@@ -40,7 +38,8 @@ define $(package)_stage_cmds
 endef
 
 define $(package)_postprocess_cmds
-  rm -rf bin && \
+  rm -rf bin lib/pkgconfig && \
   rm include/ev*.h && \
-  rm include/event2/*_compat.h
+  rm include/event2/*_compat.h && \
+  rm lib/libevent.a
 endef