paho-mqtt-c: remove unused patch file

* it was added in:
  https://git.openembedded.org/meta-openembedded/commit/?id=4d43e788f2c835948ebeb0180a5c1aaa09e8b3b5
  but never used it seems

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-connectivity/paho-mqtt-c/files/makefile.patch

@@ -1,25 +0,0 @@
-Disable building some things we don't need
-
-Upstream-Status: Inappropriate [config]
-
-Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
-
----
- Makefile |    3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/Makefile b/Makefile
-index 33bd2d0..84262bd 100644
---- a/Makefile
-+++ b/Makefile
-@@ -115,7 +115,8 @@ LDFLAGS_AS = -shared -Wl,-soname,lib${MQTTLIB_AS}.so.${MAJOR_VERSION} -lpthread
- 
- all: build
- 	
--build: | mkdir ${MQTTLIB_C_TARGET} ${MQTTLIB_CS_TARGET} ${MQTTLIB_A_TARGET} ${MQTTLIB_AS_TARGET} ${MQTTVERSION_TARGET} ${SYNC_SAMPLES} ${ASYNC_SAMPLES} ${SYNC_TESTS} ${SYNC_SSL_TESTS} ${ASYNC_TESTS} ${ASYNC_SSL_TESTS}
-+build: | mkdir ${MQTTLIB_C_TARGET} ${MQTTLIB_CS_TARGET} ${MQTTLIB_A_TARGET} ${MQTTLIB_AS_TARGET}
-+#${MQTTVERSION_TARGET} ${SYNC_SAMPLES} ${ASYNC_SAMPLES} ${SYNC_TESTS} ${SYNC_SSL_TESTS} ${ASYNC_TESTS} ${ASYNC_SSL_TESTS}
- 
- clean:
- 	rm -rf ${blddir}/*
---