[share] remove qt/protobuf.pri

follow up of 35b8af9226 (#2943)

share/qt/protobuf.pri

@@ -1,35 +0,0 @@
-# Based on: http://code.google.com/p/ostinato/source/browse/protobuf.pri
-#
-# Qt qmake integration with Google Protocol Buffers compiler protoc
-#
-# To compile protocol buffers with qt qmake, specify PROTOS variable and
-# include this file
-#
-# Example:
-# PROTOS = a.proto b.proto
-# include(protobuf.pri)
-#
-# Set PROTO_PATH if you need to set the protoc --proto_path search path
-# Set PROTOC to the path to the protoc compiler if it is not in your $PATH
-#
-
-isEmpty(PROTO_DIR):PROTO_DIR = .
-isEmpty(PROTOC):PROTOC = protoc
-
-PROTOPATHS =
-for(p, PROTO_PATH):PROTOPATHS += --proto_path=$${p}
-
-protobuf_decl.name  = protobuf header
-protobuf_decl.input = PROTOS
-protobuf_decl.output  = $${PROTO_DIR}/${QMAKE_FILE_BASE}.pb.h
-protobuf_decl.commands = $${PROTOC} --cpp_out="$${PROTO_DIR}" $${PROTOPATHS} --proto_path=${QMAKE_FILE_IN_PATH} ${QMAKE_FILE_NAME}
-protobuf_decl.variable_out = GENERATED_FILES
-QMAKE_EXTRA_COMPILERS += protobuf_decl
-
-protobuf_impl.name  = protobuf implementation
-protobuf_impl.input = PROTOS
-protobuf_impl.output  = $${PROTO_DIR}/${QMAKE_FILE_BASE}.pb.cc
-protobuf_impl.depends  = $${PROTO_DIR}/${QMAKE_FILE_BASE}.pb.h
-protobuf_impl.commands = $$escape_expand(\\n)
-protobuf_impl.variable_out = GENERATED_SOURCES
-QMAKE_EXTRA_COMPILERS += protobuf_impl