remove php 5.6 from testing

.appveyor.yml

@@ -5,7 +5,6 @@ clone_folder: C:\projects\joomla-cms
 ## Build matrix for lowest and highest possible targets
 environment:
   matrix:
-  - php_ver_target: 5.6
   - php_ver_target: 7.0
   - php_ver_target: 7.1
 
@@ -23,31 +22,14 @@ services:
 ## Install PHP and composer, and run the appropriate composer command
 install:
     - IF EXIST C:\tools\php (SET PHP=0)
-    - ps: >-
+    - appveyor-retry cinst --params '""/InstallDir:C:\tools\php""' --ignore-checksums -y php --version ((choco search php --exact --all-versions -r | select-string -pattern $env:php_ver_target | sort { [version]($_ -split '\|' | select -last 1) } -Descending | Select-Object -first 1) -replace '[php|]','')
-        If ($env:php_ver_target -eq "5.6") {
+    - $VC = "vc14"
-          appveyor-retry cinst --params '""/InstallDir:C:\tools\php""' --ignore-checksums -y --forcex86 php --version ((choco search php --exact --all-versions -r | select-string -pattern $env:php_ver_target | sort { [version]($_ -split '\|' | select -last 1) } -Descending | Select-Object -first 1) -replace '[php|]','')
+    - $PHPBuild = "x64"
-          $VC = "vc11"
-          $PHPBuild = "x86"
-        } Else {
-          appveyor-retry cinst --params '""/InstallDir:C:\tools\php""' --ignore-checksums -y php --version ((choco search php --exact --all-versions -r | select-string -pattern $env:php_ver_target | sort { [version]($_ -split '\|' | select -last 1) } -Descending | Select-Object -first 1) -replace '[php|]','')
-          $VC = "vc14"
-          $PHPBuild = "x64"
-        }
     - appveyor-retry cinst -y sqlite
     - cd C:\tools\php
     # Get the MSSQL DLL's
     - ps: >-
         If ($env:PHP -eq "1") {
-          If ($env:php_ver_target -eq "5.6") {
-            $source = "https://cdn.joomla.org/ci/php-sqlsrv.zip"
-            $destination = "c:\tools\php\php-sqlsrv.zip"
-            Invoke-WebRequest $source -OutFile $destination
-            #appveyor-retry appveyor DownloadFile https://cdn.joomla.org/ci/php-sqlsrv.zip
-            7z x -y php-sqlsrv.zip > $null
-            copy SQLSRV\php_sqlsrv_56_nts.dll ext\php_sqlsrv_nts.dll
-            copy SQLSRV\php_pdo_sqlsrv_56_nts.dll ext\php_pdo_sqlsrv_nts.dll
-            Remove-Item C:\tools\php\* -include .zip
-          } Else {
             $DLLVersion = "4.3.0"
             cd c:\tools\php\ext
             $source = "http://windows.php.net/downloads/pecl/releases/sqlsrv/$($DLLVersion)/php_sqlsrv-$($DLLVersion)-$($env:php_ver_target)-nts-vc14-x64.zip"
@@ -61,7 +43,7 @@ install:
             #appveyor-retry appveyor DownloadFile http://windows.php.net/downloads/pecl/releases/pdo_sqlsrv/$($DLLVersion)/php_pdo_sqlsrv-$($DLLVersion)-$($env:php_ver_target)-nts-vc14-x64.zip
             7z x -y php_pdo_sqlsrv-$($DLLVersion)-$($env:php_ver_target)-nts-vc14-x64.zip > $null
             Remove-Item c:\tools\php\ext* -include .zip
-            cd c:\tools\php}}
+            cd c:\tools\php}
     - IF %PHP%==1 copy php.ini-production php.ini /Y
     - IF %PHP%==1 echo date.timezone="UTC" >> php.ini
     - IF %PHP%==1 echo extension_dir=ext >> php.ini
@@ -69,16 +51,11 @@ install:
     - IF %PHP%==1 echo extension=php_mbstring.dll >> php.ini
     - IF %PHP%==1 echo extension=php_fileinfo.dll >> php.ini
     - IF %PHP%==1 echo extension=php_gd2.dll >> php.ini
-    - ps: >-
+
-        If ($env:php_ver_target -eq "5.6") {
+    - Add-Content php.ini "`nextension=php_sqlsrv.dll"
-          Add-Content php.ini "`nextension=php_sqlsrv_nts.dll"
+    - Add-Content php.ini "`nextension=php_pdo_sqlsrv.dll"
-          Add-Content php.ini "`nextension=php_pdo_sqlsrv_nts.dll"
+    - Add-Content php.ini "`n"
-          Add-Content php.ini "`n"
+
-        } Else {
-          Add-Content php.ini "`nextension=php_sqlsrv.dll"
-          Add-Content php.ini "`nextension=php_pdo_sqlsrv.dll"
-          Add-Content php.ini "`n"
-        }
     - IF %PHP%==1 echo extension=php_pgsql.dll >> php.ini
     - IF %PHP%==1 echo extension=php_pdo_pgsql.dll >> php.ini
     - IF %PHP%==1 echo extension=php_pdo_sqlite.dll >> php.ini
@@ -90,7 +67,7 @@ install:
     # Get the Wincache DLLs
     - ps: >-
         If ($env:PHP -eq "1") {
-          If ($env:php_ver_target -eq "5.6") {$wincache = "1.3.7.12"} Else {$wincache = "2.0.0.8"}
+          $wincache = "2.0.0.8"
           cd c:\tools\php\ext
           $source = "http://windows.php.net/downloads/pecl/releases/wincache/$($wincache)/php_wincache-$($wincache)-$($env:php_ver_target)-nts-$($VC)-$($PHPBuild).zip"
           $destination = "c:\tools\php\ext\php_wincache-$($wincache)-$($env:php_ver_target)-nts-$($VC)-$($PHPBuild).zip"