remove unnecessary cmake_minimum_required from sub projects

demo/CMakeLists.txt

@@ -1,5 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
-
 if(BUILD_DEMO_VIEWER)
     message(STATUS "Building demo viewer")
     add_subdirectory(viewer)

deps/CMakeLists.txt

@@ -1,2 +1 @@
-cmake_minimum_required(VERSION 3.15.0)
 add_subdirectory(agg)

deps/agg/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(agg)
 
 add_library(agg INTERFACE)

plugins/CMakeLists.txt

@@ -1,2 +1 @@
-cmake_minimum_required(VERSION 3.15.0)
 add_subdirectory(input)

plugins/input/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 if(USE_PLUGIN_INPUT_CSV)
     message(STATUS "using input plugin csv")
     add_subdirectory(csv)

plugins/input/csv/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-csv)
 
 add_library(input-csv SHARED

plugins/input/gdal/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-gdal)
 
 find_package(GDAL REQUIRED)

plugins/input/geobuf/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-geobuf)
 
 add_library(input-geobuf SHARED

plugins/input/geojson/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-geojson)
 
 add_library(input-geojson SHARED 

plugins/input/ogr/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-ogr)
 
 find_package(GDAL REQUIRED)

plugins/input/pgraster/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-pgraster)
 
 find_package(PostgreSQL REQUIRED)

plugins/input/postgis/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-postgis)
 
 find_package(PostgreSQL REQUIRED)

plugins/input/raster/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-raster)
 
 add_library(input-raster SHARED

plugins/input/shape/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-shape)
 
 add_library(input-shape SHARED 

plugins/input/sqlite/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-sqlite)
 
 find_package(SQLite3 REQUIRED)

plugins/input/topojson/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 project(input-topojson)
 
 add_library(input-topojson SHARED

src/CMakeLists.txt

@@ -1,6 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
-
-
 add_subdirectory(json)
 add_subdirectory(wkt)
 

src/json/CMakeLists.txt

@@ -1,5 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
-
 add_library(json STATIC
     extract_bounding_boxes_x3.cpp
     feature_from_geojson.cpp

src/wkt/CMakeLists.txt

@@ -1,6 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
-
-
 add_library(wkt STATIC
     geometry_to_wkt.cpp
     mapnik_wkt_generator_grammar.cpp

utils/CMakeLists.txt

@@ -1,4 +1,3 @@
-cmake_minimum_required(VERSION 3.15.0)
 if(BUILD_UTILITY_GEOMETRY_TO_WKB)
     message(STATUS "building utility geometry_to_wkb")
     add_subdirectory(geometry_to_wkb)