CDRIVER-3593 drop unused variants

Author: kevinAlbs

.evergreen/config.yml

@@ -13319,22 +13319,6 @@ buildvariants:
   - .4.0 .openssl !.nosasl .server
   - .3.6 .openssl !.nosasl .server
   - .test-coverage !.3.0
-- name: gcc46
-  display_name: GCC 4.6 (Ubuntu 12.04)
-  expansions:
-    CC: gcc
-  run_on: ubuntu1204-test
-  tasks:
-  - release-compile
-  - debug-compile-nosasl-nossl
-  - debug-compile-rdtscp
-  - .debug-compile !.sspi .openssl
-  - .debug-compile !.sspi .nossl
-  - .authentication-tests .openssl
-  - .3.6 .openssl !.nosasl .server
-  - .3.4 .openssl !.nosasl .server
-  - .3.2 .openssl !.nosasl .server
-  - .3.0 .openssl !.nosasl !.auth
 - name: gcc48ubuntu
   display_name: GCC 4.8 (Ubuntu 14.04)
   expansions:
@@ -13601,39 +13585,6 @@ buildvariants:
   - .authentication-tests .winssl
   - .4.2 .winssl .nosasl .server !.client-side-encryption
   - .4.0 .winssl .nosasl .server
-- name: windows-2010
-  display_name: Windows (VS 2010)
-  expansions:
-    CC: Visual Studio 10 2010 Win64
-  run_on: windows-64-vs2010-compile
-  tasks:
-  - .compression !.snappy !.zstd !.latest
-  - release-compile
-  - debug-compile-nosasl-nossl
-  - debug-compile-rdtscp
-  - .debug-compile .winssl !.client-side-encryption
-  - .debug-compile !.sspi .openssl !.client-side-encryption
-  - .debug-compile !.sspi .nossl
-  - .debug-compile .sspi
-  - .authentication-tests .openssl !.sasl
-  - .authentication-tests .winssl
-  - .4.2 .winssl !.nosasl .server !.client-side-encryption
-  - .4.0 .winssl !.nosasl .server
-- name: windows-2010-32
-  display_name: Windows (i386) (VS 2010)
-  expansions:
-    CC: Visual Studio 10 2010
-  run_on: windows-64-vs2010-compile
-  tasks:
-  - release-compile
-  - debug-compile-nosasl-nossl
-  - .debug-compile .winssl .sspi
-  - .debug-compile .winssl .nosasl
-  - .debug-compile !.sspi .nossl .nosasl !.client-side-encryption
-  - .debug-compile .nossl .sspi
-  - .authentication-tests .winssl
-  - .4.2 .winssl .nosasl .server
-  - .4.0 .winssl .nosasl .server
 - name: mingw-windows2016
   display_name: MinGW-W64 (Windows Server 2016)
   expansions:

build/evergreen_config_lib/variants.py

@@ -177,20 +177,6 @@
              '.3.6 .openssl !.nosasl .server',
              '.test-coverage !.3.0'],
             {'CC': 'clang'}),
-    Variant('gcc46',
-            'GCC 4.6 (Ubuntu 12.04)',
-            'ubuntu1204-test',
-            ['release-compile',
-             'debug-compile-nosasl-nossl',
-             'debug-compile-rdtscp',
-             '.debug-compile !.sspi .openssl',
-             '.debug-compile !.sspi .nossl',
-             '.authentication-tests .openssl',
-             '.3.6 .openssl !.nosasl .server',
-             '.3.4 .openssl !.nosasl .server',
-             '.3.2 .openssl !.nosasl .server',
-             '.3.0 .openssl !.nosasl !.auth'],
-            {'CC': 'gcc'}),
     Variant('gcc48ubuntu',
             'GCC 4.8 (Ubuntu 14.04)',
             'ubuntu1404-build',
@@ -431,35 +417,6 @@
              '.4.2 .winssl .nosasl .server !.client-side-encryption',
              '.4.0 .winssl .nosasl .server'],
             {'CC': 'Visual Studio 12 2013'}),
-    Variant('windows-2010',
-            'Windows (VS 2010)',
-            'windows-64-vs2010-compile',
-            ['.compression !.snappy !.zstd !.latest',
-             'release-compile',
-             'debug-compile-nosasl-nossl',
-             'debug-compile-rdtscp',
-             '.debug-compile .winssl !.client-side-encryption',
-             '.debug-compile !.sspi .openssl !.client-side-encryption',
-             '.debug-compile !.sspi .nossl',
-             '.debug-compile .sspi',
-             '.authentication-tests .openssl !.sasl',
-             '.authentication-tests .winssl',
-             '.4.2 .winssl !.nosasl .server !.client-side-encryption',
-             '.4.0 .winssl !.nosasl .server'],
-            {'CC': 'Visual Studio 10 2010 Win64'}),
-    Variant('windows-2010-32',
-            'Windows (i386) (VS 2010)',
-            'windows-64-vs2010-compile',
-            ['release-compile',
-             'debug-compile-nosasl-nossl',
-             '.debug-compile .winssl .sspi',
-             '.debug-compile .winssl .nosasl',
-             '.debug-compile !.sspi .nossl .nosasl !.client-side-encryption',
-             '.debug-compile .nossl .sspi',
-             '.authentication-tests .winssl',
-             '.4.2 .winssl .nosasl .server',
-             '.4.0 .winssl .nosasl .server'],
-            {'CC': 'Visual Studio 10 2010'}),
     Variant('mingw-windows2016',
             'MinGW-W64 (Windows Server 2016)',
             'windows-64-vs2017-test',

src/libmongoc/doc/installing.rst

@@ -17,9 +17,9 @@ The MongoDB C Driver is `continuously tested <https://evergreen.mongodb.com/wate
 - RHEL 6.7, 7.0, 7.1, 7.2
 - Ubuntu 16.04, 18.04
 - Clang 3.4, 3.5, 3.7, 3.8
-- GCC 4.6, 4.8, 4.9, 5.4, 6.3
+- GCC 4.8, 4.9, 5.4, 6.3
 - MinGW-W64
-- Visual Studio 2010, 2013, 2015
+- Visual Studio 2013, 2015, 2017
 - x86, x86_64, ARM (aarch64), Power8 (ppc64le), zSeries (s390x)
 
 Install libmongoc with a Package Manager