Remove obsolete patches

Former-commit-id: e5fb0374aac74e049f3b0dd595a1c0f27536f553

debian/patches/3975.diff

@@ -1,30 +0,0 @@
-commit 1514322fc90090b9a706c221d074ae80b3e1e079
-Author: 173210 <root.3.173210@live.com>
-Date:   Mon Nov 14 17:32:24 2016 +0900
-
-    [btls] Set CMAKE_POSITION_INDEPENDENT_CODE TRUE for BUILD_DYNAMIC_BTLS
-    
-    While CMAKE_POSITION_INDEPENDENT_CODE will be automatically set if
-    BUILD_SHARED_LIBS is TRUE, it won't if BUILD_DYNAMIC_BTLS is TRUE.
-    This change sets CMAKE_POSITION_INDEPENDENT_CODE manually in such a case.
-
-Index: xamarin-pkg-mono/mono/btls/CMakeLists.txt
-===================================================================
---- xamarin-pkg-mono.orig/mono/btls/CMakeLists.txt
-+++ xamarin-pkg-mono/mono/btls/CMakeLists.txt
-@@ -22,7 +22,14 @@ if (NOT "${BTLS_ARCH}" STREQUAL "")
- 	message (WARNING "SET ARCH: ${BTLS_ARCH}")
- 	set (CMAKE_SYSTEM_PROCESSOR "${BTLS_ARCH}")
- endif ()
--set (C_CXX_FLAGS "-Wall -Wsign-compare -Wmissing-field-initializers -ggdb -fvisibility=hidden")
-+if (BUILD_DYNAMIC_BTLS)
-+	set (CMAKE_POSITION_INDEPENDENT_CODE TRUE)
-+	set (C_CXX_FLAGS "-Wall -Wsign-compare -Wmissing-field-initializers -fPIC -ggdb -fvisibility=hidden")
-+elseif (BUILD_SHARED_LIBS)
-+	set (C_CXX_FLAGS "-Wall -Wsign-compare -Wmissing-field-initializers -fPIC -ggdb -fvisibility=hidden")
-+else ()
-+	set (C_CXX_FLAGS "-Wall -Wsign-compare -Wmissing-field-initializers -ggdb -fvisibility=hidden")
-+endif()
- set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${C_CXX_FLAGS} ${BTLS_CFLAGS}")
- set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${C_CXX_FLAGS} ${BTLS_CFLAGS}")
- set (CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} ${BTLS_CFLAGS}")

debian/patches/series

@@ -1 +0,0 @@
-3975.diff